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EnglishMOBILITY -> Wheels and tires for your BMW X3 2024-2025
Wheels and tires
MOBILITY
Wheels and tires
at ambient temperature. The tire inflation pres-
sure specifications apply to the tire sizes ap-
proved by the vehicle manufacturer for the cor-
responding vehicle types.
Vehicle features and options
This chapter describes model-specific equip-
ment, systems, and functions that are currently
available, or may become available in the fu-
ture, even if they are not present in the vehicle.
To identify the correct tire inflation pressure,
please note the following:
▷
▷
Tire sizes of the vehicle.
Additional information:
Maximum speed for driving.
Vehicle equipment, refer to page 8.
On the control display
Tire pressure
The current tire inflation pressure values and
the intended tire inflation pressure values for
the mounted tires can be displayed on the con-
trol display.
General information
The tire condition and tire pressure influence
the following:
To ensure that they are displayed correctly, the
tire sizes must be stored in the system and
must have been set for the mounted tires.
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Tire service life.
Driving safety.
The current tire inflation pressure value is lo-
cated on each tire.
Driving comfort.
Fuel consumption.
The reference tire inflation pressure value is
located in the lower area of the control display.
Safety information
Checking the tire pressure
Warning
General information
The tires heat up while driving. The tire pres-
sure increases with the tire temperature.
A tire with too little or no tire inflation pres-
sure may heat up significantly and sustain
damage. This will have a negative impact
on aspects of handling such as steering and
braking response. There is a risk of accident,
injury, and property damage. Regularly check
the tire inflation pressure, and correct it as
needed, for instance twice a month and be-
fore a long trip.
Check the tire pressure regularly and correct as
necessary.
Tires have a natural, consistent tire pressure
loss. The displays of inflation devices may un-
der-read by up to 0.1 bar/2 psi.
Functional requirements
Only check the tire pressure when the tires are
cold, i.e.:
Tire pressure specifications
In the tire pressure table
The tire pressure table contains all tire infla-
tion pressure specifications for given tire sizes
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Wheels and tires
MOBILITY
▷
▷
A distance traveled of max. 1.25 miles/2 km
has not been exceeded.
Checking using the tire inflation
pressure specifications on the control
display
To check the tire pressure using the tire pres-
sure information on the control display, pro-
ceed as follows:
If the vehicle has not moved again for at
least two hours after a trip.
Checking via tire inflation pressure
specifications in tire pressure table
To check the tire pressure using the tire pres-
sure specifications in the tire pressure table,
proceed as follows:
1. Go through the menu as follows: Apps
menu / "Vehicle" / "Vehicle status" / "Tire
Pressure Monitor".
2. Check whether the current tire inflation
pressure levels deviate from the intended
tire pressure value.
1. Determine the nominal tire pressure for
your tires using the information on the door
pillar in the driver’s door.
3. Correct the tire inflation pressure if the ac-
tual tire inflation pressure deviates from the
intended tire inflation pressure.
2. Check the tire inflation pressure in all four
tires, using a pressure gage, for example.
3. Correct the tire inflation pressure if the ac-
tual tire inflation pressure deviates from the
intended tire inflation pressure.
The display of current tire pressure on the con-
trol display may be restricted when the vehicle
is stationary. The tire pressure will update after
a short drive.
4. Make sure that all valve caps are screwed
onto the tire valves.
After correcting the tire pressure
The tire inflation pressure specifications in the
tire pressure table only correspond to cold tires
or tires at the same temperature as the ambi-
ent temperature.
If your vehicle is equipped with a Tire Pressure
Monitor, the corrected tire pressures are ap-
plied automatically. Make sure that the tire set-
tings are correct. When using tires not found in
the tire inflation pressure specifications on the
control display, reset the Tire Pressure Moni-
tor.
If vehicle is equipped with an emergency
wheel: Check the tire pressure of the emer-
gency wheel in the cargo area regularly and
correct as necessary.
If your vehicle is equipped with the Flat Tire
Monitor, reinitialize it.
Tire inflation pressures up to 100 mph/160 km/h
For speeds of up to 100 mph/160 km/h and for
optimum driving comfort, follow the tire infla-
tion pressure specifications in the tire pressure
table and adjust as necessary.
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Wheels and tires
MOBILITY
The tire inflation pressure specifications can
also be found on the tire pressure label on the
driver's door pillar.
Do not exceed a speed of 100 mph/160 km/h.
Tire pressure values up to 100 mph/160 km/h
X3 30 xDrive
The tire inflation pressure specifications in the
tire pressure table correspond to cold tires and
full load.
Tire size
Front wheel
Rear wheel
Tire pressure specifi- Tire pressure specifi-
cations in bar/PSI
cations in bar/PSI
245/50 R 19 105 Y XL
2.4 / 35
2.7 / 39
245/50 R 19 105 H XL A/S
245/50 R 19 105 H XL M+S
Front: 255/45 R 20 105 H XL A/S
Rear: 285/40 R 20 108 H XL A/S
Front: 255/45 R 20 105 Y XL
Rear: 285/40 R 20 108 Y XL
Front: 255/40 R 21 102 Y XL
Rear: 285/35 R 21 105 Y XL
2.4 / 35
–
-
2.5 / 36
2.4 / 35
–
–
2.5 / 36
2.4 / 35
–
–
2.7 / 39
Front: HL 255/35 R 22 102 Y XL
Rear: HL 285/30 R 22 104 Y XL
Front: 255/45 R 20 105 V XL M+S
2.6 / 38
–
–
2.9 / 42
–
2.4 / 35
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Wheels and tires
MOBILITY
Tire size
Front wheel
Rear wheel
Tire pressure specifi- Tire pressure specifi-
cations in bar/PSI
cations in bar/PSI
Rear: 285/40 R 20 108 V XL M+S
–
2.5 / 36
Emergency wheel:
T 125/85 R 18 101 M
Speed up to a max. of 50 mph / 80 km/h
4.2 / 60
X3 M50 xDrive
The tire inflation pressure specifications in the
tire pressure table correspond to cold tires and
full load.
Tire size
Front wheel
Rear wheel
Tire pressure specifi- Tire pressure specifi-
cations in bar/PSI
cations in bar/PSI
245/50 R 19 105 H XL M+S
2.5 / 36
2.8 / 41
Front: 255/45 R 20 105 H XL A/S
Rear: 285/40 R 20 108 H XL A/S
Front: 255/45 R 20 105 Y XL
Rear: 285/40 R 20 108 Y XL
Front: 255/40 R 21 102 Y XL
Rear: 285/35 R 21 105 Y XL
2.4 / 35
–
–
2.5 / 36
2.4 / 35
–
–
2.5 / 36
–
2.5 / 36
–
2.8 / 41
–
Front: HL 255/35 R 22 102 Y XL
Rear: HL 285/30 R 22 104 Y XL
Front: 255/45 R 20 105 V XL M+S
Rear: 285/40 R 20 108 V XL M+S
2.7 / 39
–
3.0 / 44
–
2.4 / 35
–
2.5 / 36
Emergency wheel:
T 125/85 R 18 101 M
Speed up to a max. of 50 mph / 80 km/h
4.2 / 60
Tire pressures over 100 mph/160 km/h
become damaged, which may cause an ac-
cident. There is a risk of accident, injury,
and property damage. To drive at maximum
speeds, note the specified tire pressure for
driving above 100 mph/160 km/h in the tire
Warning
When driving at speeds greater than
100 mph/160 km/h, incorrect tire pressures
can negatively affect vehicle handling, e.g.,
safety or comfort while driving. The tires can
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Wheels and tires
MOBILITY
inflation pressure table, and adjust as neces-
sary.
Tire pressure values over 100 mph/160 km/h
X3 30 xDrive
The tire inflation pressure specifications in the
tire pressure table correspond to cold tires and
full load.
Tire size
Front wheel
Rear wheel
Tire pressure specifi- Tire pressure specifi-
cations in bar/PSI
cations in bar/PSI
245/50 R 19 105 Y XL
2.6 / 38
2.9 / 42
245/50 R 19 105 H XL A/S
245/50 R 19 105 H XL M+S
2.7 / 39
3.0 / 44
Front: 255/45 R 20 105 H XL A/S
Rear: 285/40 R 20 108 H XL A/S
Front: 255/45 R 20 105 Y XL
Rear: 285/40 R 20 108 Y XL
Front: 255/40 R 21 102 Y XL
2.4 / 35
–
–
2.7 / 39
–
2.4 / 35
–
2.7 / 39
–
2.7 / 39
Rear: 285/35 R 21 105 Y XL
–
3.0 / 44
–
Front: HL 255/35 R 22 102 Y XL
Rear: HL 285/30 R 22 104 Y XL
Front: 255/45 R 20 105 V XL M+S
Rear: 285/40 R 20 108 V XL M+S
2.8 / 41
–
3.1 / 45
–
2.7 / 39
–
3.0 / 44
Emergency wheel:
T 125/85 R 18 101 M
Speed up to a max. of 50 mph / 80 km/h
4.2 / 60
X3 M50 xDrive
The tire inflation pressure specifications in the
tire pressure table correspond to cold tires and
full load.
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Wheels and tires
MOBILITY
Tire size
Front wheel
Rear wheel
Tire pressure specifi- Tire pressure specifi-
cations in bar/PSI
cations in bar/PSI
245/50 R 19 105 H XL M+S
2.7 / 39
3.0 / 44
Front: 255/45 R 20 105 H XL A/S
Rear: 285/40 R 20 108 H XL A/S
Front: 255/45 R 20 105 Y XL
Rear: 285/40 R 20 108 Y XL
Front: 255/40 R 21 102 Y XL
Rear: 285/35 R 21 105 Y XL
2.5 / 36
–
–
2.8 / 41
2.6 / 38
–
–
2.9 / 42
–
2.9 / 42
–
3.2 / 46
–
Front: HL 255/35 R 22 102 Y XL
Rear: HL 285/30 R 22 104 Y XL
Front: 255/45 R 20 105 V XL M+S
Rear: 285/40 R 20 108 V XL M+S
3.1 / 45
–
3.4 / 49
–
2.9 / 42
–
3.2 / 46
Emergency wheel:
T 125/85 R 18 101 M
Speed up to a max. of 50 mph / 80 km/h
4.2 / 60
GAWR – on the certification label on the driver
door B-pillar. Divide the tire load by 1.1. It must
be greater than one-half of the vehicle’s Gross
Axle Weight Rating – GAWR. Note, front vs.
rear GAWR and tire loads, respectively.
Tire marking
Tire size
245/45 R 18 96 Y
245: nominal width in mm
45: cross-sectional relationship in %
R: radial tire code
Speed letter
Designation Maximum speed
18: rim diameter in inches
96: load index
Q
R
S
up to 100 mph/160 km/h
up to 106 mph/170 km/h
up to 112 mph/180 km/h
up to 118 mph/190 km/h
up to 131 mph/210 km/h
up to 150 mph/240 km/h
up to 167 mph/270 km/h
Y: speed code letter
ZR tires: reinforced radial tire for speeds ex-
ceeding 150 mph/240 km/h
T
H
V
Maximum tire load
Maximum tire load is the maximum permissi-
ble weight for which the tire is approved.
W
Locate the maximum tire load on the tire
sidewall and the Gross Axle Weight Rating –
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Wheels and tires
MOBILITY
Treadwear
Designation Maximum speed
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course. E.g., a tire graded 150
would wear one and one-half, 1 g, times as
well on the government course as a tire graded
100. The relative performance of tires depends
upon the actual conditions of their use, how-
ever, and may depart significantly from the
norm due to variations in driving habits, service
practices and differences in road characteris-
tics and climate.
Y
up to 186 mph/300 km/h
above 186 mph/300 km/h
(Y)
Tire Identification Number
DOT code: DOT xxxx xxx 1924
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
1924: tire age
Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
Traction
Tire age
The traction grades, from highest to lowest,
are AA, A, B, and C.
Recommendation
Regardless of the tire tread depth, replace tires
at least every 6 years.
Those grades represent the tire's ability to
stop on wet pavement as measured under
controlled conditions on specified government
test surfaces of asphalt and concrete. A tire
marked C may have poor traction perform-
ance.
Production date
You can find the tire production date on the tire
sidewall.
The traction grade assigned to this tire is
based on straight-ahead braking traction tests,
and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
Designation
Production date
DOT … 1924
19th week of 2024
Temperature
Uniform Tire Quality Grading
The temperature grades are A, the highest, B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and reduce
tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds
to a level of performance which all passenger
car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades Band
A represent higher levels of performance on
the laboratory test wheel than the minimum
required by law.
Quality grades can be found where applicable
on the tire sidewall between tread shoulder
and maximum section width.
E.g.: Treadwear 200; Traction AA; Tempera-
ture A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger vehicle tires must conform to
Federal Safety Requirements in addition to
these grades.
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Wheels and tires
MOBILITY
Warning
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla-
tion, or excessive loading, either separately
or in combination, can cause heat buildup
and possible tire failure. There is a risk of
accident, injury, and property damage.
The tire manufacturer’s wear indicators are
distributed over the tire circumference. These
indicators have a height of min. 0.06 in/1.6 mm
and serve as an indicator for tire tread wear.
M+S
Winter tires, as well as all-season tires with
better winter performance than summer tires,
can be identified by the M+S marking on the
tire side wall.
The positions of the wear indicators are
marked on the tire sidewall with TWI, Tread
Wear Indicator.
Tire tread depth
Safety information
Warning
Tire damage
General information
Check your tires regularly for damage, foreign
objects lodged in the tread, and tread wear.
If the tire tread depth is too low, driving
safety may be impaired in critical situations
such as aquaplaning or slush on the road.
There is a risk of accident, injury, and prop-
erty damage. The tire tread depth may not
fall below 0.12 in/3 mm for summer tires and
0.16 in/4 mm for winter and all-season tires,
or observe the statutory regulations on mini-
mum tread depth.
The following abnormalities may indicate tire
damage or a malfunction on the vehicle:
▷
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▷
Unusual vibrations.
Unusual tire or running noises.
Unusual vehicle handling such as a strong
tendency to pull to the left or right.
▷
Uneven wear pattern, e.g., increased wear
near tire shoulder.
Tire damage can be caused by situations such
as the following:
Minimum tread depth
You can check the minimum tread depth on
your tires using the wear indicators.
▷
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Driving over curbs.
Road damage.
Tire pressure too low.
Vehicle overloading.
Incorrect tire storage.
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Wheels and tires
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The vehicle manufacturer determines wheel/
tire combinations on the basis of the following
criteria:
Safety information
Warning
▷
▷
Tire size, e.g., tire width, aspect ratio.
Wheel size, e.g., rim diameter, offset.
Damaged tires can lose tire inflation pres-
sure, which can lead to loss of vehicle con-
trol. There is a risk of accident, injury, and
property damage. If tire damage is suspected
while driving, immediately reduce speed and
stop. Have wheels and tires checked. To do
so, drive carefully to an authorized service
center or another qualified service center or
repair shop. Have the vehicle towed or trans-
ported as needed. Do not repair damaged
tires, but have them replaced.
For more information on wheel/tire combina-
tions and special equipment, contact an au-
thorized service center or another qualified
service center or repair shop.
Safety information
Warning
Wheels and tires that are not suitable for
the vehicle can damage parts of the vehicle.
There is a risk of accident, injury, and prop-
erty damage. The vehicle manufacturer rec-
ommends that you use only wheels and tires
that have been recommended for the vehicle
type.
Warning
The wheels, tires and chassis components
can become damaged when driving over
curbs, road damage, or other obstacles.
Larger wheels have a smaller tire cross-sec-
tion. The smaller the tire cross-section, the
higher the risk of tire damage. There is a risk
of accident, injury, and property damage. If
possible, avoid driving over curbs, road dam-
age or other obstacles, or drive over them
slowly and carefully.
Warning
Mounted steel wheels can cause technical
problems, for instance unexpected loosening
of the lug bolts and damage to the brake
disks. There is a risk of accident, injury,
and property damage. Do not mount steel
wheels.
Exchanging wheels and
tires
Warning
Wheel/tire combinations that are not suitable
for the vehicle can affect vehicle handling
and a number of system functions, e.g.,the
Antilock Braking System or Dynamic Stability
Control. There is a risk of accident, injury, and
property damage. The manufacturer of the
vehicle recommends that you use wheels and
tires that have been recommended by the
vehicle manufacturer for the vehicle type. Fol-
lowing tire damage, have the original wheel/
Mounting and wheel balancing
Have the wheel mounted and balanced by an
authorized service center or another qualified
service center or repair shop.
Suitable wheels and tires
General information
Only certain wheel/tire combinations are suit-
able depending on vehicle and equipment.
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Wheels and tires
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tire combination remounted on the vehicle as
soon as possible.
turer of the vehicle does not recommend the
use of retreaded tires.
Recommended tire brands
Maximum speed
Safety information
Warning
If the maximum permissible speed of your
mounted tires is exceeded, the tires may be
damaged. There is a risk of accident, injury,
and property damage. Do not exceed the
maximum permissible speed of the tires.
Tire types are developed for each vehicle and
optimized specifically for the individual require-
ments of that vehicle, e.g.:
Maximum speed of winter tires
If the maximum speed of the vehicle is higher
than the permissible speed of the winter tires,
the maximum permissible speed must be indi-
cated with a sign placed in the field of vision.
The info label is available from an authorized
service center or another qualified service cen-
ter or repair shop.
▷
▷
▷
Handling.
Comfort.
Noise characteristics.
Specially developed tires are marked with
a star on the tire sidewall. After replacing
wheels and tires, the vehicle manufacturer rec-
ommends using star-marked tires again. The
vehicle manufacturer recommends that you
use tires of the same make and tread design.
Winter tires
New tires
Tire traction is not optimal due to manufactur-
ing circumstances when tires are brand new.
Drive conservatively for the first
200 miles/300 km.
Retreaded tires
Winter tires are recommended for operating on
winter roads.
Warning
Winter tires can be identified by the moun-
tain/snowflake icon and the letters M+S on the
tire sidewall.
Retreated tires can have different tire casing
structures. With advanced age the service life
can be limited. There is a risk of accident,
injury, and property damage. The manufac-
So-called all-season tires with the M+S des-
ignation but no mountain/snowflake icon per-
form better in winter than summer tires. As a
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Wheels and tires
MOBILITY
rule, all-season tires do not perform the same
as winter tires.
▷
▷
Do not leave the tires in plastic bags.
Remove dirt from wheels or tires.
Changing runflat tires
Runflat tires
When changing from runflat tires to standard
tires, it must be ensured that the vehicle con-
tains an emergency wheel or tire mobility kit.
For more information, contact an authorized
service center or another qualified service cen-
ter or repair shop.
Principle
Runflat tires permit continued driving under
limited conditions even in the event of a com-
plete tire pressure loss.
Wheel change between axles
General information
The wheels consist of tires that are self-sup-
porting to a limited degree and may also in-
clude special rims.
Warning
A wheel change between the axles on vehi-
cles with different tire sizes or rim sizes on
the front and rear axles can cause damage
to the tires and the vehicle. There is a risk
of accident, injury, and property damage. Do
not rotate the tires between the axles on ve-
hicles with different tire sizes or rim sizes on
the front and rear axles.
The reinforcement of the sidewall allows the
tire to remain drivable to a limited degree in
the event of a tire pressure loss.
Follow the instructions for continued driving
with a flat tire.
Safety information
Different tread wear patterns can occur on the
front and rear axles depending on individual
driving conditions. The tires can be rotated in
pairs between the axles to achieve even abra-
sion. For more information, contact an author-
ized service center or another qualified service
center or repair shop. After changing a wheel,
check the tire pressure and correct as neces-
sary.
Warning
The vehicle handles differently when a runflat
tire has insufficient or no tire pressure; for
instance, reduced directional stability when
braking, braking distances are longer and the
self-steering properties will change. There is
a risk of accident, injury, and property dam-
age. Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
Storing tires
Do not exceed the maximum tire pressure
specified on the tire sidewall, also when storing
tires.
Warning
Heavy trailers can start swinging when con-
tinuing to drive with a flat tire. There is a
risk of accidents and risk of property damage.
Do not exceed a speed of 35 mph/60 km/h
when driving with a trailer and a flat tire. If the
trailer swings or snakes, brake immediately
When storing tires, note the following:
▷
Store wheels and tires in a cool, dry and
dark place.
▷
Protect tires from coming into contact with
oil, grease, and solvents.
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Wheels and tires
MOBILITY
and apply necessary steering corrections as
carefully as possible.
Tire repair set
Principle
Identification
The tire repair set is used to temporarily seal
minor tire damage so that it is possible to con-
tinue driving.
The filled in tire sealant closes the damage
from the inside when it hardens.
The compressor can be used to check the tire
inflation pressure.
The tire repair set may be insufficient if the tire
damage measures more than approx. 0.16 in /
4 mm.
Runflat tires are labeled with a circular icon
containing the letters RSC marked on the tire
sidewall.
General information
▷
Follow the instructions for using the tire
repair set, which are provided on the com-
pressor and sealant bottle.
Repairing a flat tire
▷
Do not remove foreign objects that have
penetrated the tire. Remove foreign objects
only when they are visibly protruding from
the tire.
If you get a flat tire, take the following safety
precautions:
▷
Park the vehicle on solid and non-slip
ground at a safe distance from road traffic.
Overview
▷
▷
▷
Switch on the hazard warning lights.
Engage the parking brake.
Storage
Depending on vehicle equipment, the tire re-
pair set is stored as follows:
Turn the steering wheel until the front
wheels are in the straight-ahead position
and engage the steering wheel lock.
▷
In the cargo area under the cargo area
floor.
▷
▷
As soon as permitted by the traffic flow,
have all vehicle occupants get out and
make sure that they remain outside the
hazardous area such as behind a guardrail.
▷
▷
In the cargo area on the left or right side.
In the cargo area behind a side trim panel.
If necessary, set up the hazard triangle
or hazard warning lights at a suitable dis-
tance.
Repair the flat tire, e.g., using a tire repair set
or by changing the wheel.
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Wheels and tires
MOBILITY
▷
▷
Engage the parking brake.
Sealant bottle and filler hose
Turn the steering wheel until the front
wheels are in the straight-ahead position
and engage the steering wheel lock.
▷
As soon as permitted by the traffic flow,
have all vehicle occupants get out and
make sure that they remain outside the
hazardous area such as behind a guardrail.
▷
▷
If necessary, set up the hazard triangle
or hazard warning lights at a suitable dis-
tance.
1
Sealant bottle
Remove the warning label for the maximum
permissible speed from the sealant bottle
and attach it in the visible area in the vehi-
cle interior.
2
3
4
5
Sealant bottle outlet
Filler hose
Sealant bottle connection
Wheel valve connection
Preparing the tire repair set
1. To prepare the tire repair set, place the
sealant bottle into the holder on the com-
pressor housing.
Compressor
1
Compressor
2
3
4
5
6
Tire pressure display
Sealant bottle mount
Pressure reducing valve button
Connector for socket
Power switch
2. Turn the sealant bottle clockwise by 90° to
the stop.
Safety precautions
When using the tire repair set, take the follow-
ing safety precautions:
▷
Park the vehicle as far away as possible
from passing traffic and on solid ground.
▷
Switch on the hazard warning lights.
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MOBILITY
3. Connect the filler hose to the outlet of the
sealant bottle and turn clockwise by 90° to
the stop.
NOTICE
The compressor can overheat during ex-
tended operation. There is a risk of property
damage. Do not run the compressor for more
than 10 minutes.
Filling the tire with sealing compound
To fill in tire sealant, let the compressor run
for max. 10 minutes until a tire pressure of
2.5 bar/36 psi is reached.
4. Unscrew the valve cap from the wheel and
screw the connecting piece of the filler hose
onto the valve.
1. With standby state or drive-ready state
switched on, switch on the compressor.
When adding sealant, the Tire Pressure
Monitor may briefly rise up to approx.
6 bar/87 psi before it shows the actual tire
pressure again. Do not turn off the com-
pressor at this stage.
2. Switch off the compressor when you reach
a tire pressure of 2.5 bar/36 psi.
Checking the tire pressure
To check the tire pressure, read the tire pres-
sure gauge on the compressor. The tire pres-
sure must be at least 2.5 bar/36 psi.
5. With the compressor switched off, insert the
connector into the power socket in the vehi-
cle interior.
Tire pressure too high
If the tire pressure is too high, reduce the tire
pressure with the pressure reducing valve on
the compressor.
Filling the tire with sealing
compound
Safety information
Minimum tire pressure not reached
Do not continue driving unless a minimum tire
pressure of 2.5 bar/36 psi is reached. Contact
an authorized service center or another quali-
fied service center or repair shop.
DANGER
If the exhaust pipe is blocked or ventilation is
insufficient, harmful exhaust gases can pene-
trate the vehicle. The exhaust gases contain
pollutants which are colorless and odorless.
In enclosed areas, exhaust gases can also
accumulate outside of the vehicle. There is a
danger to life. Keep the exhaust pipe free and
ensure sufficient ventilation.
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MOBILITY
5. Read the tire pressure on the tire pressure
display of the compressor.
Minimum tire pressure reached
When the tire pressure is at least
2.5 bar/36 psi, proceed as follows:
Do not continue driving unless a minimum
tire pressure of 1.3 bar/19 psi is displayed.
Contact an authorized service center or an-
other qualified service center or repair shop.
1. Pull the connector out of the socket in the
vehicle interior.
2. Disconnect the hose from the sealant bottle
and from the valve on the wheel.
6. Correct the tire pressure to 2.5 bar/36 psi.
▷
To increase the tire pressure when
standby or drive-ready state is on: Turn
on the compressor and let it run for
max. 10 minutes.
3. Screw the valve cap onto the valve.
4. Stow the tire repair set in the cargo area.
5. Immediately drive 6 miles/10 km to ensure
that the tire sealant is evenly distributed in
the tire.
▷
To decrease the tire pressure: Press the
pressure reducing valve button on the
compressor.
Do not exceed the speed limit of
50 mph/80 km/h.
Removing and stowing the tire
repair set
If possible, do not drive at speeds less than
12 mph/20 km/h.
To remove and stow the tire repair set, pro-
ceed as follows:
Tire sealant may spray from the damaged
area when you rotate the wheel initially.
1. Switch off the compressor.
Adjusting the tire pressure
To adjust the tire pressure after using the tire
repair set, proceed as follows:
2. Pull the connector out of the socket in the
vehicle interior.
3. Disconnect the hose from the compressor
and from the valve on the wheel.
1. Stop at a suitable location.
2. Connect the hose directly to the compres-
sor and turn clockwise by 90° until it audi-
bly engages.
4. Screw the valve cap onto the valve.
5. Stow the tire repair set together with the
hose in the cargo area.
3. Unscrew the valve cap on the wheel and
screw the connecting piece of the hose
onto the valve.
Continuing the trip
Continue driving immediately once finished
with the tire repair set.
Re-initialize the Flat Tire Monitor or reset the
Tire Pressure Monitor.
Do not exceed the speed limit of
50 mph/80 km/h.
Do not exceed the maximum travel distance of
125 miles/200 km.
Re-initialize the Flat Tire Monitor or reset the
Tire Pressure Monitor.
4. Insert the connector into the socket in the
vehicle interior.
Replace the faulty tire and the sealant bottle
from the tire repair set as soon as possible.
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Additional information:
the manufacturer of the vehicle and recom-
mended as road-safe and suitable.
▷
▷
Flat tire monitor, refer to page 353.
For information on suitable snow chains, con-
tact an authorized service center or another
qualified service center or repair shop.
Tire pressure monitor, refer to page 346.
System limits
If the tire cannot be made drivable, contact an
authorized service center or another qualified
service center or repair shop.
Use
Snow chains can only be used in pairs on rear
wheels of the following wheel/tire sizes:
If your vehicle is equipped with a Tire Pressure
Monitor, note the following: Using tire sealant
can damage the tire pressure sensor. In this
case, have the air pressure sensor replaced at
the next opportunity.
Tire size
Wheel size Rim offset (IS)
26
245/50 R19 8.5J x 19
Information on the wheel size and rim offset is
located on the inside of the wheel.
Snow chains
Safety information
Warning
The list can also include wheel/tire sizes that
are only suitable for certain models.
Information on wheels and tires approved for
the vehicle can be requested from an author-
ized service center or another qualified service
center or repair shop.
Mounting snow chains on unsuitable tires
can cause the snow chains to come into
contact with vehicle parts. There is a risk of
accident, injury, and property damage. Only
fit snow chains on tires recommended by
the vehicle manufacturer for use with snow
chains.
Follow the instructions of the snow chain man-
ufacturer.
If your vehicle is equipped with a Tire Pres-
sure Monitor, note the following: Do not reset
the Tire Pressure Monitor when using snow
chains, otherwise incorrect values may be dis-
played.
If your vehicle is equipped with a Flat Tire
Monitor, note the following: Do not initialize the
Flat Tire Monitor when using snow chains, oth-
erwise incorrect values may be displayed.
Warning
Insufficiently tight snow chains may damage
tires and vehicle components. There is a
risk of accident, injury, and property damage.
Make sure that the snow chains are always
sufficiently tight. Re-tighten as needed ac-
cording to the snow chain manufacturer's in-
structions.
When using with snow chains, activate drive-
off support to optimize the drive power as nec-
essary.
Maximum speed with snow chains
When using snow chains, do not exceed a
maximum speed of 30 mph/50 km/h.
Fine-link snow chains
The manufacturer of the vehicle recommends
the use of fine-link snow chains. Certain types
of fine-link snow chains have been tested by
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Wheels and tires
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Functional requirements
If the following requirements are not met for
the Tire Pressure Monitor, tire pressure losses
may not be reported reliably:
Tire pressure monitor
Principle
The Tire Pressure Monitor monitors the tire
pressure and issues a warning if the tire pres-
sure has dropped.
▷
After each tire or wheel change, the system
detects and updates the mounted tires on
the control display and displays them after
a short trip.
The sensors in the tire valves measure the tire
pressure and tire temperature.
Enter the information about the mounted
tires in the tire settings when the system
does not automatically detect the tires.
Depending on the tires detected or registered,
the system displays the specified nominal
pressures on the control display and compares
them with the current tire pressures.
▷
▷
The Tire Pressure Monitor does not acti-
vate until after driving for a few minutes:
▷
▷
After a tire or wheel change.
General information
After a reset, when using tires with spe-
cial approval.
When using tires not found in the tire infla-
tion pressure specifications on the vehicle, e.g.,
tires with special approval, the Tire Pressure
Monitor must be actively reset. The system
will then take over the actual tire inflation pres-
sures as the target pressures.
▷
After changing tire settings.
When using tires with special approval,
note the following:
▷
After a tire or wheel change, a reset was
performed with the correct tire inflation
pressure.
When operating the system, also note the in-
formation found in the Tire inflation pressure
chapter.
▷
After the tire inflation pressure was ad-
justed to a new value, a reset was per-
formed.
Additional information:
Tire inflation pressure, refer to page 330.
▷
Wheels with tire pressure sensors are
mounted.
Safety information
Tire settings
Warning
The display of the target pressures is not
a substitute for the tire inflation pressure de-
tails on the vehicle. Incorrect entries in the
tire settings can lead to incorrect target tire
inflation pressure values. In this case, it can-
not be guaranteed that the notification of a
tire pressure loss will be reliable. There is a
risk of injury and risk of property damage.
Make sure that the sizes of your mounted
tires are displayed correctly and match the
information on the tires and the tire inflation
pressure specifications on the vehicle.
General information
You can enter information on your mounted
tires in the tire settings if the tires are not auto-
matically detected by the system.
The tire sizes of the mounted tires can be
gathered from the tire inflation pressure details
on the vehicle or directly on the tires.
The tire details do not need to be re-entered
when the tire pressure is corrected.
For summer and winter tires, the tire details
entered last are stored. After a tire or wheel
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Wheels and tires
MOBILITY
change, the settings of the tire sets used last
can be selected.
Current tire temperature
The current tire temperatures are displayed
depending on the model.
Configuring the tire settings
To enter information on equipped tires in the
tire settings, proceed as follows:
The current tire temperatures may change
while driving or due to the outside tempera-
ture.
1. Go through the menu as follows: Apps
menu / "Vehicle" / "Vehicle status" / "Tire
Pressure Monitor" / "Tire settings" / "Tire
selection" / "Manual" / "Tire type".
Nominal pressure
The nominal pressure for the tires on the front
and rear axles is displayed.
2. Select the tire size for the rear axle.
When using tires with special approval:
"Other tires"
The specified nominal pressures take the in-
fluence of driving and outside temperature on
the tire temperature into account. The appro-
priate nominal pressure is always displayed,
independent of the weather situation, tire tem-
peratures and travel times.
Follow the instructions given in the “Per-
forming a reset” section.
3. Select the maximum speed to be driven.
4. "Save tire settings"
The displayed nominal pressure may change
and may differ from the tire inflation pressure
details on the door pillar of the driver's door.
The tire inflation pressure can thus be cor-
rected to the value of the displayed target
pressures.
The measurement of the current tire inflation
pressure is started. The measurement prog-
ress is displayed.
The nominal pressure is immediately adjusted
if the vehicle load state is changed in the tire
settings.
Status display
Current status
The status of the Tire Pressure Monitor, e.g.,
whether this system is active, can be shown on
the control display.
Tire conditions
General information
Go through the menu as follows: Apps menu /
"Vehicle" / "Vehicle status" / "Tire Pressure
Monitor".
The tire and system condition are indicated by
the color of the wheels and a text message
in the Tire Pressure Monitor on the control dis-
play.
The current status is displayed.
Any existing messages may not be deleted if
the nominal pressure is not reached after the
tire inflation pressure is corrected.
Current tire pressure
The current tire pressure is displayed for each
tire.
The current tire inflation pressures may
change while driving or depending on the out-
side temperature.
All wheels green
On the control display, each wheel illuminates
green in the Tire Pressure Monitor when the
system is active.
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Wheels and tires
MOBILITY
▷
▷
This system bases any warnings on target
pressures.
After resetting, the wheels are shown in green
on the control display and a message appears.
When using tires with special approval, this
system bases any warnings on the last tire
pressures saved at the reset.
You may interrupt this trip at any time. When
you continue driving the reset resumes auto-
matically.
Additional information:
One to four yellow wheels
Tire settings, refer to page 346.
In the Tire Pressure Monitor on the control dis-
play, one to four wheels illuminate if one of the
tires shown is flat or has lost a large amount of
pressure.
Messages: for tires without special
approval
General information
When using tires without special approval, the
Tire Pressure Monitor may display a message.
Gray wheels
On the control display, the wheels illuminate
gray in the Tire Pressure Monitor if a tire pres-
sure loss possibly cannot be detected.
When a flat tire is indicated, the Dynamic Sta-
bility Control may be turned on.
Possible causes are:
▷
▷
The system may not be operational.
Safety information
After confirming the tire settings, the tire
pressure is measured automatically.
Warning
▷
When using tires with special approval: The
system is being reset.
A damaged regular tire with low or no tire
inflation pressure impacts handling such as
steering and braking response. Runflat tires
can maintain limited stability. There is a risk
of accident, injury, and property damage. Do
not continue driving if the vehicle is equipped
with normal tires. Follow the information on
runflat tires and continued driving with these
tires.
For tires with special approval:
performing a reset
When using tires with special approval, pro-
ceed as follows to reset:
1. Go through the menu as follows: Apps
menu / "Vehicle" / "Vehicle status" / "Tire
Pressure Monitor".
2. Make sure that the tire settings are correct.
If a tire inflation pressure check is
required
3. Turn on drive-ready state but do not drive
off.
Message
4. "Perform reset"
5. Drive off.
When using tires without special approval, the
Tire Pressure Monitor displays a message if it
is necessary for you to check the tire pressure.
The wheels are shown in gray and the tire
pressure is reset.
An icon with a Check Control message appears
on the control display.
After a travel time of several minutes, the set
tire inflation pressures are accepted as the
predefined tire inflation pressures. The reset is
completed automatically while driving.
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Wheels and tires
MOBILITY
A yellow warning light is illuminated in
the instrument cluster.
Icon
Possible cause
Leak detected on the tire.
In addition, an icon with the affected tire ap-
pears in a Check Control message on the con-
trol display.
Inflation was not carried out accord-
ing to specifications, for instance
when the tire has not been suffi-
ciently inflated or in the case of a nat-
ural steady tire pressure loss.
Icon
Possible cause
There is a flat tire or a major tire
pressure loss.
Measure
Check the tire pressure and correct as needed.
If the tire inflation pressure is too low
Message
Measure
1. Reduce your speed and come to a stop
carefully. Avoid sudden braking and steer-
ing maneuvers.
When using tires without special approval, the
Tire Pressure Monitor displays a message if
the tire pressure is too low.
2. Check whether the vehicle is fitted with
standard tires or runflat tires.
Runflat tires are labeled with a circular icon
containing the letters RSC marked on the
tire sidewall.
A yellow warning light is illuminated in
the instrument cluster.
3. Follow the instructions for what to do in
case of a flat tire.
In addition, an icon with a Check Control mes-
sage appears on the control display.
Additional information:
Icon
Possible cause
Actions in the event of a flat tire, refer to
page 351.
There is a tire pressure loss.
Messages: for tires with special
approval
Measure
1. Reduce the vehicle speed. Do not continue
to exceed a speed of 80 mph/130 km/h.
General information
When using tires with special approval, the
Tire Pressure Monitor may display a message.
2. At the next opportunity, for instance at a fill-
ing station, check the tire inflation pressure
in all four tires and correct if necessary.
When a flat tire is indicated, the Dynamic Sta-
bility Control may be turned on.
If there is a significant tire pressure
loss
Safety information
Message
Warning
When using tires without special approval, the
Tire Pressure Monitor displays a message if a
tire loses a significant amount of pressure.
A damaged regular tire with low or no tire
inflation pressure impacts handling such as
steering and braking response. Runflat tires
can maintain limited stability. There is a risk
349
Wheels and tires
MOBILITY
of accident, injury, and property damage. Do
not continue driving if the vehicle is equipped
with normal tires. Follow the information on
runflat tires and continued driving with these
tires.
A yellow warning light is illuminated in
the instrument cluster.
In addition, an icon with a Check Control mes-
sage appears on the control display.
Icon
Possible cause
If a tire inflation pressure check is
required
There is a tire pressure loss.
No reset was performed for the sys-
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
Message
When using tires with special approval, the
Tire Pressure Monitor displays a message if it
is necessary for you to check the tire pressure.
Measure
An icon with a Check Control message appears
on the control display.
1. Reduce the vehicle speed. Do not continue
to exceed a speed of 80 mph/130 km/h.
Icon
Possible cause
2. At the next opportunity, for instance at a fill-
ing station, check the tire inflation pressure
in all four tires and correct if necessary.
Inflation was not carried out ac-
cording to specifications, e.g., the
tire has not been sufficiently in-
flated.
3. Perform a system reset.
If there is a significant tire pressure
loss
The system has detected a wheel
change, but no reset was done.
The tire inflation pressure has
fallen below the level of the last
reset.
Message
When using tires with special approval, the
Tire Pressure Monitor displays a message if a
tire loses a significant amount of pressure.
No reset was performed for the
system. The system issues a
warning based on the tire inflation
pressures stored during the last re-
set.
A yellow warning light is illuminated in
the instrument cluster.
In addition, an icon with the affected tire ap-
pears in a Check Control message on the con-
trol display.
Measure
1. Check the tire pressure and correct as
needed.
Icon
Possible cause
2. Perform a system reset.
If the tire inflation pressure is too low
Message
There is a flat tire or a major tire
pressure loss.
No reset was performed for the sys-
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
When using tires with special approval, the
Tire Pressure Monitor displays a message if
the tire pressure is too low.
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Wheels and tires
MOBILITY
Measure
Runflat tires
1. Reduce your speed and come to a stop
carefully. Avoid sudden braking and steer-
ing maneuvers.
Safety information
2. Check whether the vehicle is fitted with
standard tires or runflat tires.
Warning
The vehicle handles differently when a runflat
tire has insufficient or no tire pressure; for
instance, reduced directional stability when
braking, braking distances are longer and the
self-steering properties will change. There is
a risk of accident, injury, and property dam-
age. Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
Runflat tires are labeled with a circular icon
containing the letters RSC marked on the
tire sidewall.
3. Follow the instructions for what to do in
case of a flat tire.
Additional information:
Actions in the event of a flat tire, refer to
page 351.
Warning
Actions in the event of a flat tire
Heavy trailers can start swinging when con-
tinuing to drive with a flat tire. There is a
risk of accidents and risk of property damage.
Do not exceed a speed of 35 mph/60 km/h
when driving with a trailer and a flat tire. If the
trailer swings or snakes, brake immediately
and apply necessary steering corrections as
carefully as possible.
Standard tires
1. In the event of a flat tire, identify the dam-
aged tire.
2. Check the tire pressure in all four tires,
for instance using the tire pressure display
of a flat tire kit.
For tires with special approval: when the
tire pressure in all four tires is correct, the
Tire Pressure Monitor may not have been
reset. Then perform the reset.
Maximum speed
You may continue driving with a damaged tire
at speeds up to 50 mph/80 km/h.
If no tire damage can be identified, con-
tact an authorized service center or another
qualified service center or repair shop.
Continued driving with a flat tire
Follow the following when continuing to drive
with a damaged tire:
3. Repair the flat tire, e.g., using a tire repair
set or by changing the wheel.
The use of sealant, e.g., from the tire repair
set, may damage the wheel electronics.
Have the electronics replaced at the next
opportunity.
1. Avoid sudden braking and steering maneu-
vers.
2. Do not exceed a speed of
50 mph/80 km/h.
3. Check the tire inflation pressure in all four
tires at the next opportunity.
Possible driving distance with a flat tire
The possible driving distance which may be
safely traveled varies depending on how the
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Wheels and tires
MOBILITY
vehicle is loaded and used, e.g., speed, road
conditions, outside temperature. The distance
traveled may be less but may also be more if
an economical driving style is used.
Following a temperature-related warning, the
target pressures are displayed on the control
display again after a short distance.
Sudden tire pressure loss
If the vehicle is loaded with an average
weight and used under favorable conditions,
the possible distance traveled may be up to
50 miles/80 km.
The system is not able to indicate sudden and
serious tire damage and the resulting loss of
tire pressure caused by external circumstan-
ces.
Vehicle handling with damaged tires
Failure performing a reset
Vehicles driven with a damaged tire will han-
dle differently, potentially leading to conditions
such as the following:
When using tires with special approval, the
system will not function correctly if it has not
been reset. For example, a flat tire may be in-
dicated although the tire pressures are correct.
▷
▷
▷
Greater likelihood of skidding of the vehicle.
Longer braking distances.
Changed self-steering properties.
Malfunction
Modify your driving style. Avoid abrupt steering
or driving over obstacles, for instance curbs or
potholes.
Message
The Tire Pressure Monitor displays a message
if the system is not operational.
Final tire failure
The yellow warning light flashes and is
then illuminated continuously. A Check
Control message is displayed. It may
Vibrations or loud noises while driving can indi-
cate the final failure of a tire.
Reduce speed and stop; otherwise, pieces of
the tire could come loose and cause an acci-
dent.
not be possible to identify tire pressure losses.
Measure
Do not continue driving. Contact an authorized
service center or another qualified service cen-
ter or repair shop.
If the Tire Pressure Monitor system is not op-
erational, proceed as follows:
▷
▷
If a wheel without air pressure sensor is
mounted, have the wheels checked as nec-
essary.
System limits
Temperature
The tire inflation pressure depends on the
tire's temperature.
Fault due to systems or devices with same
transmission frequency: The system reacti-
vates automatically upon leaving the inter-
ference zone.
Driving or exposure to the sun will increase the
tire temperature, thus increasing the tire infla-
tion pressure.
▷
▷
The system was unable to completely reset
when using tires with special approval. Per-
form a system reset again.
The tire inflation pressure is reduced when the
tire temperature falls again.
If the Tire Pressure Monitor has failed:
Have the vehicle checked by an authorized
service center or another qualified service
center or repair shop.
These circumstances may cause a warning
when temperatures fall very sharply.
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Wheels and tires
MOBILITY
vehicle that prevent the TPMS from function-
ing properly. Always check the TPMS malfunc-
tion telltale after replacing one or more tires
or wheels on the vehicle to ensure that the re-
placement or alternate tires and wheels allow
the TPMS to continue to function properly.
Declaration according to NHTSA/
FMVSS 138 Tire Pressure Monitoring
System
Each tire, including the spare (if provided)
should be checked monthly when cold and in-
flated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If the
vehicle has tires of a different size than the
size indicated on the vehicle placard or tire
inflation pressure label, you should determine
the proper tire inflation pressure for those
tires.) As an added safety feature, the vehi-
cle has been equipped with a tire pressure
monitoring system (TPMS) that illuminates a
low tire pressure telltale when one or more
of your tires is significantly under-inflated. Ac-
cordingly, when the low tire pressure telltale
illuminates, you should stop and check your
tires as soon as possible, and inflate them to
the proper pressure. Driving on a significantly
under-inflated tire causes the tire to overheat
and can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and
may affect the vehicle's handling and stopping
ability. Please note that the TPMS is not a
substitute for proper tire maintenance, and it
is the driver's responsibility to maintain correct
tire pressure, even if under-inflation has not
reached the level to trigger illumination of the
TPMS low tire pressure telltale. The vehicle
has also been equipped with a TPMS malfunc-
tion indicator to indicate when the system is
not operating properly. The TPMS malfunction
indicator is combined with the low tire pres-
sure telltale. When the system detects a mal-
function, the telltale will flash for approximately
one minute and then remain continuously il-
luminated. This sequence will continue upon
subsequent vehicle start-ups as long as the
malfunction exists. When the malfunction indi-
cator is illuminated, the system may not be
able to detect or signal low tire pressure as
intended. TPMS malfunctions may occur for a
variety of reasons, including the installation of
replacement or alternate tires or wheels on the
Flat tire monitor
Principle
The flat tire monitor detects a tire pressure
loss while driving and issues a warning if the
tire pressure has dropped.
The system does not measure the actual infla-
tion pressure in the tires.
The system detects tire pressure loss on the
basis of rotation speed differences between
the individual wheels while driving.
If a tire loses pressure, the diameter and
thus the rotational speed of the corresponding
wheel changes. The difference will be detected
and reported as a flat tire.
Functional requirements
If the following requirements are not met for
the Flat Tire Monitor, a loss in tire pressure
may not be reliably reported:
▷
After a tire or wheel change, an initialization
was carried out at the correct tire pressure.
▷
After the tire pressure was adjusted to a
new value, an initialization was performed.
Status display
The current status of the Flat Tire Monitor can
be displayed on the control display, e.g., to
check whether the Flat Tire Monitor is active.
Go through the menu as follows: Apps
menu / "Vehicle" / "Vehicle status" / "Flat Tire
Monitor".
The status is displayed.
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Wheels and tires
MOBILITY
Safety information
Initialization required
The Flat Tire Monitor must be initialized in the
following situations:
Warning
▷
After the tire inflation pressure has been
adjusted.
A damaged regular tire with low or no tire
inflation pressure impacts handling such as
steering and braking response. Runflat tires
can maintain limited stability. There is a risk
of accident, injury, and property damage. Do
not continue driving if the vehicle is equipped
with normal tires. Follow the information on
runflat tires and continued driving with these
tires.
▷
After a tire or wheel change.
Performing initialization
When initializing the Flat Tire Monitor, the tire
pressures you set serve as a reference value
for detecting a flat tire. Initialization is started
by confirming the tire inflation pressures.
Do not initialize the system when driving with
snow chains.
Indication of a flat tire
To initialize the Flat Tire Monitor, proceed as
follows:
The Flat Tire Monitor displays a message
when a tire is flat.
1. Go through the menu as follows: Apps
menu / "Vehicle" / "Vehicle status" / "Flat
Tire Monitor".
A yellow warning light is illuminated in
the instrument cluster.
In addition, an icon with a Check Control mes-
sage appears on the control display.
2. Turn on drive-ready state but do not drive
off.
Icon
Possible cause
3. "Perform reset".
4. Drive off.
There is a flat tire or a major tire
pressure loss.
The initialization is completed while driving,
which can be interrupted at any time.
The initialization automatically continues when
driving continues.
Measure
1. Reduce your speed and come to a stop
carefully. Avoid sudden braking and steer-
ing maneuvers.
Messages
2. Check whether the vehicle is fitted with
standard tires or runflat tires.
General information
The Tire Pressure Monitor displays a message
when a tire is flat.
Runflat tires are labeled with a circular icon
containing the letters RSC marked on the
tire sidewall.
When a flat tire is indicated, the Dynamic Sta-
bility Control (DSC) is turned on, if needed.
3. Follow the instructions for what to do in
case of a flat tire.
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Wheels and tires
Maximum speed
MOBILITY
Actions in the event of a flat tire
You may continue driving with a damaged tire
at speeds up to 50 mph/80 km/h.
Standard tires
1. In the event of a flat tire, identify the dam-
aged tire.
Continued driving with a flat tire
Follow the following when continuing to drive
with a damaged tire:
2. To do this, check the tire pressure in all four
tires, for instance using the tire pressure
display of a flat tire kit.
1. Avoid sudden braking and steering maneu-
vers.
When the tire inflation pressure in all four
tires is correct, the flat tire monitor may
not have been initialized. Then initialize the
system.
2. Do not exceed a speed of
50 mph/80 km/h.
3. Check the tire inflation pressure in all four
tires at the next opportunity.
If no tire damage can be identified, con-
tact an authorized service center or another
qualified service center or repair shop.
When the tire inflation pressure in all four
tires is correct, the flat tire monitor may not
have been initialized. In this case, initialize
the system.
3. Repair the flat tire, e.g., using a tire repair
set or by changing the wheel.
Runflat tires
Possible driving distance with a flat tire
The possible driving distance which may be
safely traveled varies depending on how the
vehicle is loaded and used, e.g., speed, road
conditions, outside temperature. The distance
traveled may be less but may also be more if
an economical driving style is used.
Safety information
Warning
The vehicle handles differently when a runflat
tire has insufficient or no tire pressure; for
instance, reduced directional stability when
braking, braking distances are longer and the
self-steering properties will change. There is
a risk of accident, injury, and property dam-
age. Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
If the vehicle is loaded with an average
weight and used under favorable conditions,
the possible distance traveled may be up to
50 miles/80 km.
Vehicle handling with damaged tires
Vehicles driven with a damaged tire will han-
dle differently, potentially leading to conditions
such as the following:
Warning
▷
▷
▷
Greater likelihood of skidding of the vehicle.
Longer braking distances.
Heavy trailers can start swinging when con-
tinuing to drive with a flat tire. There is a
risk of accidents and risk of property damage.
Do not exceed a speed of 35 mph/60 km/h
when driving with a trailer and a flat tire. If the
trailer swings or snakes, brake immediately
and apply necessary steering corrections as
carefully as possible.
Changed self-steering properties.
Modify your driving style. Avoid abrupt steering
or driving over obstacles, for instance curbs or
potholes.
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Wheels and tires
MOBILITY
Final tire failure
Safety information
Vibrations or loud noises while driving can indi-
cate the final failure of a tire.
Warning
Reduce speed and stop; otherwise, pieces of
the tire could come loose and cause an acci-
dent.
The jack is only provided for short-term lifting
of the vehicle for wheel changes. Even if all
safety precautions are observed, there is a
risk of the raised vehicle falling if the jack tips
over. There is a risk of injury or danger to life.
When the vehicle is raised with the jack, do
not lie under the vehicle and do not switch on
the drive-ready state.
Do not continue driving. Contact an authorized
service center or another qualified service cen-
ter or repair shop.
System limits
The Flat Tire Monitor may be react with a de-
lay or malfunction in the following situations:
Warning
▷
A natural, even tire pressure loss in all
four tires will not be recognized. Therefore,
check the tire inflation pressure regularly.
Placing supports, e.g., wooden blocks or sim-
ilar, under the jack may reduce its ability to
bear weight because of the limited height.
The load-carrying capacity of the wooden
blocks may be exceeded and the vehicle may
tip over. There is a risk of injury or danger to
life. Do not place supports under the jack.
▷
Sudden and serious tire damage caused
by external circumstances cannot be recog-
nized in advance.
▷
▷
The system has not been initialized.
When driving on a snow-covered or slippery
road.
▷
▷
For sporty driving, e.g., due to slippage on
the drive wheels or high lateral accelera-
tion.
Warning
The jack, issued by the vehicle manufacturer,
is provided in order to perform a wheel
change in the event of a breakdown. The
jack is not designed for frequent use, e.g.,
changing from summer to winter tires. Using
the jack frequently may cause it to become
jammed or damaged. There is a risk of injury
and risk of property damage. Only use the
jack to change an emergency or spare wheel
in the event of a breakdown.
When driving with snow chains.
Changing wheels/tires
General information
When a flat tire kit is used, an immediate wheel
change when there is a tire pressure loss in the
event of a breakdown is not always necessary.
If necessary, a suitable wheel change tool, e.g.,
a jack, is available as an accessory from an
authorized service center or another qualified
service center or repair shop.
Warning
The jack may slip on soft, uneven, or slippery
ground, e.g., snow, ice, tiles, etc. There is a
risk of injury. If possible, change the wheel on
a flat, solid, slip-resistant surface.
356
Wheels and tires
MOBILITY
Securing the vehicle against rolling
away
Warning
The jack is optimized for lifting the vehicle
and for the jacking points on the vehicle only.
There is a risk of injury. Do not lift any other
vehicle or cargo using the jack.
General information
The vehicle manufacturer recommends to ad-
ditionally secure the vehicle against rolling
away when changing a wheel.
On a level surface
Warning
When the jack is not inserted into the jacking
point provided for this purpose, the vehicle
may be damaged or the jack may slip when
it is being cranked up. There is a risk of injury
and risk of property damage. When cranking
up the jack, ensure that it is inserted in the
jacking point next to the wheel well.
Warning
Place chocks or other suitable objects in front
and behind the wheel that is diagonal to the
wheel being changed.
A vehicle that is raised on a jack may fall
off of the jack if lateral forces are exerted
on it. There is a risk of injury and risk of
property damage. While the vehicle is raised,
do not exert lateral effort on the vehicle or
pull abruptly on the vehicle. Have a stuck
wheel removed by an authorized service cen-
ter or another qualified service center or re-
pair shop.
On a slight downhill gradient
NOTICE
Using an impact wrench to loosen or tighten
the wheel lock bolt can damage the wheel
lock bolt. There is a risk of property damage.
Only use a lug wrench to loosen and tighten
the wheel lock bolt.
If it is necessary to change a wheel on a slight
downhill gradient, place chocks and other suit-
able objects, e.g., rocks, under the wheels of
the front and rear axles, against the direction
that the vehicle will move.
357
Wheels and tires
MOBILITY
Screwing on
Lug bolt lock
1. To screw on, place the adapter on the
wheel lock bolt. Turn the adapter until it fits
onto the wheel lock bolt.
Principle
The wheel bolt lock offers effective protection
against wheel theft.
2. Screw on the wheel lock bolt. The tighten-
ing torque is 101 lbs ft/140 Nm.
The wheel lug bolts have a special coding. The
lug bolts can only be released with the adapter
which matches the coding.
3. After screwing on, remove the adapter
again.
Overview
Safety precautions
Take the following safety measures when
changing a wheel:
Depending on vehicle equipment, store the lug
bolt lock adapter as follows:
▷
In the cargo area under the cargo area
floor.
▷
Park the vehicle on solid and non-slip
ground at a safe distance from road traffic.
▷
▷
In the cargo area on the left or right side.
In the cargo area behind a side trim panel.
▷
▷
▷
Switch on the hazard warning lights.
Engage the parking brake.
Turn the steering wheel until the front
wheels are in the straight-ahead position
and engage the steering wheel lock.
▷
▷
Engage a gear or selector lever position P.
As soon as permitted by the traffic flow,
have all vehicle occupants get out and
make sure that they remain outside the
hazardous area such as behind a guardrail.
▷
▷
If necessary, set up the hazard triangle
or hazard warning lights at a suitable dis-
tance.
▷
▷
Lug lock bolt, arrow 1.
Adapter, arrow 2.
Depending on vehicle equipment, remove
the wheel change set and, if necessary, the
emergency wheel from the vehicle.
Unscrewing
1. To unscrew, place the adapter on the
wheel lock bolt.
▷
▷
Secure the vehicle so that it does not roll
away.
2. Unscrew the lug lock bolt.
Loosen the lug bolts a half turn.
3. Remove the adapter after unscrewing the
lug bolt.
358
Wheels and tires
MOBILITY
To raise the vehicle so that you can change a
wheel, proceed as follows:
Jacking points
1. Hold the vehicle jack with one hand, ar-
row 1, and grasp the jack crank handle or
lever with your other hand, arrow 2.
The jacking points are located at the indicated
positions.
Jacking up the vehicle
2. Insert the jack into the rectangular recess of
the jacking point closest to the wheel to be
changed.
Warning
Hands and fingers can be jammed when us-
ing the jack. There is a risk of injury. Comply
with the described hand position and do not
change this position while using the jack.
3. Extend the jack by turning the jack crank
handle or lever clockwise.
4. Take your hand away from the jack as soon
as the jack is under load and continue turn-
ing the jack crank handle or lever with one
hand.
359
Wheels and tires
MOBILITY
5. Make sure that the car jack foot extends
vertically and is at a right angle beneath the
jacking point.
After the wheel change
After changing the wheel, do the following:
1. Tighten the lug bolts crosswise. The tight-
ening torque is 101 lbs ft/140 Nm.
2. Stow the faulty wheel in the cargo area, if
necessary.
3. Check the tire pressure at the next opportu-
nity and correct as necessary.
4. Re-initialize the Flat Tire Monitor or reset
the Tire Pressure Monitor.
5. Check to make sure the lug bolts are tight
with a calibrated torque wrench.
6. Crank the vehicle up until the entire jack
surface is on the ground and the cor-
responding wheel is lifted max. 1.2 in-
ches/3 cm above the ground.
6. Drive to the nearest authorized service cen-
ter or another qualified service center or
repair shop, then have the damaged tire
replaced.
Mounting a wheel
Mount one emergency wheel only, as required.
Emergency wheel
To change a wheel, proceed as follows:
1. Unscrew the lug bolts.
2. Remove the wheel.
Principle
In the event of a flat tire, one emergency spare
wheel maximum can be used as a replace-
ment for defective tires. The emergency wheel
is only intended for temporary use until the
faulty tire/wheel has been replaced.
3. Put the new wheel or emergency wheel on
and screw in at least two lug bolts in a
crosswise pattern until hand-tight.
When non-original light-alloy wheels of the
vehicle manufacturer are mounted, the ac-
companying lug bolts may have to be used
as well.
General information
Also check the tire pressure of the spare wheel
in the cargo area regularly, and correct as nec-
essary.
4. Hand-tighten the remaining lug bolts and
tighten all lug bolts well in a crosswise pat-
tern.
5. Turn the jack crank handle counterclock-
wise to retract the jack and lower the vehi-
cle.
Safety information
Warning
6. Remove the jack and stow it securely.
The emergency wheel has particular dimen-
sions. When driving with an emergency
wheel, changed driving properties may oc-
cur, for instance reduced directional stabil-
ity when braking, longer braking distance,
and changed self-steering properties in the
limit range. There is a risk of accident. Drive
360
Wheels and tires
MOBILITY
moderately and do not exceed a speed of
50 mph/80 km/h.
Overview
The emergency wheel and wheel change set
are located in the cargo area under the cargo
floor panel.
Removing the emergency wheel
To remove the emergency spare wheel, pro-
ceed as follows:
1. Fold up the cargo area floor.
2. Fold out the cargo area floor holder in order
to hold the cargo area floor in the folded-up
position.
3. Loosen the wing screw.
4. Remove the bracket or cover.
5. Remove the mount and trailer tow hitch as
necessary.
6. Remove the jacking point and the tool
holder on the left next to the emergency
wheel.
7. Push the emergency spare wheel to the left
and remove it.
Inserting the emergency wheel
To fit the emergency spare wheel, proceed as
follows:
1. Place the emergency spare wheel on the
left and slide it to the right.
2. Insert and secure the jacking point and the
tool holder on the left next to the emer-
gency wheel.
3. Where applicable, mount the holder and the
trailer hitch.
4. Position the holder or cover.
5. Screw on and tighten the wing screw.
6. Fold down the cargo area floor.
361
