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EnglishWheels and tires -> Tire pressure monitor for your BMW i5 2023-2025
Wheels and tires
MOBILITY
Rear-wheel steering during
operation with snow chains
General information
Sensors in the tire valves measure the tire in-
flation pressure and tire temperature.
General information
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.
In order to guarantee free movement of the
wheels when operating with snow chains,
rear-wheel steering must be turned off when
snow chains are mounted.
If tires are being used that are not specified
in the tire inflation pressure details on the ve-
hicle such as tires with special approval, the
system needs to be actively reset. The system
will then take over the actual tire inflation pres-
sures as the target pressures.
Rear-wheel steering is switched on again
automatically when the permitted maxi-
mum speed for snow chains is exceeded:
30 mph/50 km/h.
The setting for equipped snow chains can only
be used below 30 mph/50 km/h.
When operating the system, also note the in-
formation found in the Tire inflation pressure
chapter.
Safety information
Additional information:
Tire inflation pressure, refer to page 331.
Warning
When rear-wheel steering is switched on and
snow chains are mounted, there can be con-
tact between snow chains and the body.
There is a risk of accident, injury, or property
damage. With mounted snow chains, switch
off the rear-wheel steering.
Safety information
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 damage to property.
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.
Switching off rear-wheel steering
The rear-wheel steering is switched off by
specifying that snow chains are installed.
1.
Apps menu
2. "Vehicle"
3. "Driving settings"
4. "Drivetrain and chassis"
5. "Snow chains"
Functional requirements
The following prerequisites must be met for
the system; otherwise, reliable notification of a
tire pressure loss is not assured:
Tire pressure monitor
Principle
▷
After each tire or wheel change, the system
detects and updates the mounted tires on
The Tire Pressure Monitor monitors the tire
pressure and issues a warning if the tire pres-
sure has dropped.
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Wheels and tires
MOBILITY
the control display and displays them after
a short trip.
5. "Tire settings"
6. "Tire selection"
Enter the information about the mounted
tires in the tire settings when the system
does not automatically detect the tires.
7. "Manual"
8. "Tire type"
9. Select the tire size for the rear axle.
For tires with special approval:
"Other tires"
▷
▷
The Tire Pressure Monitor does not acti-
vate until after driving for a few minutes:
▷
▷
After a tire or wheel change.
Observe further proceeding in the perform
a reset section.
After a reset, when using tires with spe-
cial approval.
10. Select the maximum speed to be driven.
11. "Save tire settings"
▷
After changing the tire setting.
For tires with special approval:
The measurement of the current tire inflation
pressure is started. The measurement prog-
ress is displayed.
▷
After a tire or wheel change, a reset was
performed with the correct tire inflation
pressure.
▷
After the tire inflation pressure was ad-
justed to a new value, a reset was per-
formed.
Status display
Current status
▷
Wheels with air pressure sensor.
The system status can be displayed on the
control display, e.g., whether or not the system
is active.
Tire settings
General information
1.
Apps menu
The information about the mounted tires can
be entered in the tire settings if the system
does not automatically detect the tires.
2. "Vehicle"
3. "Vehicle status"
4. "Tire Pressure Monitor"
The current status is displayed.
The tire sizes of the mounted tires can be
gathered from the tire inflation pressure details
on the vehicle or directly on the tires.
Current tire pressure
The current tire pressure is displayed for each
tire.
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
change, the settings of the tire sets used last
can be selected.
The current tire inflation pressures may
change while driving or depending on the out-
side temperature.
Current tire temperature
The current tire temperatures are displayed
depending on the model.
Adjusting the tires
1.
Apps menu
2. "Vehicle"
The current tire temperatures may change
while driving or due to the outside tempera-
ture.
3. "Vehicle status"
4. "Tire Pressure Monitor"
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Wheels and tires
MOBILITY
Nominal pressure
Gray wheels
The nominal pressure for the tires on the front
and rear axles is displayed.
It may not be possible to identify tire pressure
losses.
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.
Possible causes:
▷
▷
Malfunction.
During tire inflation pressure measurement,
after confirmation of the tire settings.
▷
For tires with special approval: a reset is
performed for the system.
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.
For tires with special approval:
performing a reset
1.
Apps menu
2. "Vehicle"
The nominal pressure is immediately adjusted
if the vehicle load state is changed in the tire
settings.
3. "Vehicle status"
4. "Tire Pressure Monitor"
5. Make sure that the tire settings are correct.
Tire settings, refer to page 346.
Tire conditions
6. Turn on drive-ready state and do not drive
off.
General information
Tire and system status are indicated by the
color of the wheels and a text message on the
control display.
7. "Perform reset".
8. Drive off.
The wheels are shown in gray and the tire
pressure is reset.
Any existing messages may not be deleted if
the nominal pressure is not reached after the
tire inflation pressure is corrected.
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.
All wheels green
▷
The system is active and bases warnings
on the target pressures.
After resetting, the wheels are shown in green
on the control display and a message appears.
▷
For tires with special approval: the system
is active and bases warnings on the tire
inflation pressures stored during the last re-
set.
You may interrupt this trip at any time. When
you continue driving the reset resumes auto-
matically.
Messages: for tires without special
approval
One to four yellow wheels
A flat tire or major tire pressure loss has occur-
red in the indicated tires.
General information
When a flat tire is indicated, the Dynamic Sta-
bility Control may be turned on.
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Wheels and tires
MOBILITY
Measure
Safety information
1. Reduce the vehicle speed. Do not exceed a
speed of 80 mph/130 km/h.
Warning
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.
A damaged regular tire with low or no tire
inflation pressure impacts handling such as
steering and braking response. There is a risk
of accident, injury, or property damage. Do
not continue driving. Repair the flat tire or re-
place the wheel.
If there is a significant tire pressure
loss
Message
If a tire inflation pressure check is
required
A yellow warning light is illuminated in
the instrument cluster.
Message
In addition, an icon with the affected tire ap-
pears in a Check Control message on the con-
trol display.
An icon with a Check Control message appears
on the control display.
Icon
Possible cause
Icon
Possible cause
There is a flat tire or a major tire
pressure loss.
Leak detected on the tire.
Inflation was not carried out ac-
cording to specifications, for in-
stance when the tire has not been
sufficiently inflated or in the case of
a natural steady tire pressure loss.
Measure
1. Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu-
vers.
Measure
2. Read the description on what to do in case
of a flat tire.
Check the tire pressure and correct as needed.
If the tire inflation pressure is too low
Message
Actions in the event of a flat tire, refer to
page 350.
Messages: for tires with special
approval
A yellow warning light is illuminated in
the instrument cluster.
General information
When a flat tire is indicated, the Dynamic Sta-
bility Control may be turned on.
In addition, an icon with a Check Control mes-
sage appears on the control display.
Icon
Possible cause
There is a tire pressure loss.
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Wheels and tires
MOBILITY
Safety information
If the tire inflation pressure is too low
Message
Warning
A yellow warning light is illuminated in
the instrument cluster.
A damaged regular tire with low or no tire
inflation pressure impacts handling such as
steering and braking response. There is a risk
of accident, injury, or property damage. Do
not continue driving. Repair the flat tire or re-
place the wheel.
In addition, an icon with a Check Control mes-
sage appears on the control display.
Icon
Possible cause
There is a tire pressure loss.
If a tire inflation pressure check is
required
No reset was performed for the
system. The system issues a
warning based on the tire inflation
pressures stored during the last re-
set.
Message
An icon with a Check Control message appears
on the control display.
Measure
Icon
Possible cause
1. Reduce the vehicle speed. Do not exceed a
speed of 80 mph/130 km/h.
Inflation was not carried out ac-
cording to specifications, e.g., the
tire has not been sufficiently in-
flated.
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.
The system has detected a wheel
change, but no reset was done.
3. Perform a system reset.
The tire inflation pressure has
fallen below the level of the last re-
set.
If there is a significant tire pressure
loss
Message
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.
2. Perform a system reset.
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Wheels and tires
MOBILITY
Driving or exposure to the sun will increase the
tire temperature, thus increasing the tire infla-
tion pressure.
Icon
Possible cause
There is a flat tire or a major tire
pressure loss.
The tire inflation pressure is reduced when the
tire temperature falls again.
No reset was performed for the
system. The system issues a
warning based on the tire inflation
pressures stored during the last re-
set.
These circumstances may cause a warning
when temperatures fall very sharply.
Following a temperature-related warning, the
target pressures are displayed on the control
display again after a short distance.
Measure
1. Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu-
vers.
Sudden tire pressure loss
The system cannot indicate sudden and se-
rious tire damage caused by external circum-
stances.
2. Read the description on what to do in case
of a flat tire.
Actions in the event of a flat tire, refer to
page 350.
Failure performing a reset
Tires with special approval: the system will not
function correctly if a reset was not performed,
for example a flat tire may be indicated al-
though the tire inflation pressures are correct.
Actions in the event of a flat tire
1. Identify the damaged tire.
Check the tire pressure in all four tires,
for instance using the tire pressure display
of a flat tire kit.
Malfunction
Message
For tires with special approval: when the
tire pressure in all four tires is correct, the
Tire Pressure Monitor may not have been
reset. In this case, perform the reset.
The yellow warning light flashes and is
then illuminated continuously. A Check
Control message is displayed. It may
not be possible to identify tire pressure losses.
If no tire damage can be identified, con-
tact an authorized service center or another
qualified service center or repair shop.
Measure
2. Repair the flat tire, e.g., with a flat tire kit or
by changing the wheel.
▷
A wheel without air pressure sensor is
mounted: Have the wheels checked as
needed.
Use of sealing compound, for instance from
the flat tire kit, may damage the wheel elec-
tronics. Have the electronics replaced at the
next opportunity.
▷
Fault caused by systems or devices with
the same transmission frequency: The sys-
tem automatically reactivates after leaving
the area of the interference.
System limits
Temperature
The tire inflation pressure depends on the
tire's temperature.
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Wheels and tires
MOBILITY
▷
▷
For tires with special approval: the system
was unable to complete the reset. Perform
a system reset again.
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
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.
If the Tire Pressure Monitor malfunctions:
Have the vehicle checked by an authorized
service center or another qualified service
center or repair shop.
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-
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.
General information
The system detects tire pressure loss on the
basis of rotation speed differences between
the individual wheels while driving.
In the event of a tire pressure loss, the diam-
eter and therefore the rate of rotation of the
corresponding wheel changes. The difference
will be detected and reported as a flat tire.
The system does not measure the actual infla-
tion pressure in the tires.
Functional requirements
The following prerequisites must be met for
the system; otherwise, reliable notification of a
tire pressure loss is not assured:
▷
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.
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