Deutsch
EnglishControls and features -> Flat Tire Monitor for your BMW 3 Series 1997-2006
88 Dynamic Stability Control (DSC)
Flat Tire Monitor
To reactivate the system
The concept
Press the button again; the indicator
lamp goes out.
As you drive, the Flat Tire Monitor
keeps track of pressure levels in all four
tires. The system detects whenever the
inflation pressure in a tire drops off sig-
nificantly.
Dynamic Brake Control (DBC)
DBC is an integral component of the
DSC system.
Controlling the tire pressure is based
on monitoring the rpm that the tires
have relative to each other. A flat tire is
detected and reported because the rpm
suddenly deviate drastically from one
another.
If you apply the brakes rapidly, this sys-
tem automatically generates maximum
braking force boost and thus helps to
achieve the shortest possible braking
distance in panic braking situations. All
of the benefits of the ABS system are
exploited under these circumstances.
Do not reduce the pressure on the
brake pedal for the duration of the
brake application. When the brake
pedal is released, the DBC is deacti-
vated.
Flat Tire Monitor
89
4. After a few minutes, the Flat Tire
Monitor will accept the current infla-
tion pressure as the value to be mea-
sured against, and from that point on
can detect and report a flat tire.
Initializing the system
To activate/deactivate the system
Initializing is necessary to familiarize the
system with the correct inflation pres-
sures.
The system is automatically activated in
ignition key position 2 and conse-
quently is on whenever the vehicle is
operated.
Repeat this process after any changes
in tire inflation pressure, tire rotation or
replacement.
To deactivate the system: tap the but-
ton, the indicator lamp will light up yel-
low.
1. Check the tire inflation pressures in
all the tires, comparing them with the
inflation pressure table, refer to
page 25, and adjust them if neces-
sary
2. Turn the ignition key to position 2
3. Press button as long as you need to
until the indicator lamp in the instru-
ment cluster lights up. After a little
while, the indicator lamp will go out
by itself
To activate the system: tap the button
again; the indicator lamp goes out.
Deactivate the system when snow
chains are mounted, since false warn-
ings and undetected losses in pressure
are possible under these kinds of con-
ditions.
90 Flat Tire Monitor
Check tire inflation pressures on a
regular basis, correcting them as
necessary, refer to page 25.
Under certain circumstances, there
may be false warnings or a delayed
detection of losses in pressure when
driving on snow-covered or slippery
road surfaces.
Performance-oriented driving – slip at
the drive wheels and high levels of lat-
eral acceleration – can also delay the
appearance of status reports in the Flat
Tire Monitor's display panel.<
Flat tire
The red warning lamp in the
instrument cluster lights up to
warn of pressure loss and tire
failure. In addition, an acoustic signal is
sounded. To come to an immediate
stop, reduce speed, while avoiding any
sudden, jerky braking or steering
maneuvers.
Fix the flat tire using the M Mobility sys-
tem, refer to page 139.
To reset the indicator lamp: the red
indicator lamp has to be switched off
manually after putting on a new wheel.
At this point, hold the Flat Tire Monitor
button down until the indicator lamp
goes out. Reinitialize the system after-
ward.
System malfunctions
As long as there is still a malfunction,
the indicator lamp in the instrument
cluster will stay lit up yellow.
Please contact your BMW center for
additional information.
The Flat Tire Monitor cannot pro-
vide you with advance warning of
sudden and severe tire damage caused
by external factors.
Another factor which the Flat Tire Moni-
tor does not recognize is the balanced
and very gradual pressure loss that
takes place in all tires over an extended
period of time.<
