Tire Pressure Monitor Tpm - BMW 328i Owner's Manual

Malfunction
The warning lamps come on in yel-
low. The Flat Tire Monitor has a mal-
function or has failed. Have the sys-
tem checked as soon as possible.

Tire Pressure Monitor TPM*

The concept
TPM checks the inflation pressures of the four
mounted tires. The system notifies you if there
is a significant loss of pressure in one or more
tires.
Functional requirement
In order to assure the reliable reporting of a flat
tire, the system must be reset while all tire infla-
tion pressures are correct.
Always use wheels with TPM electronics. Oth-
erwise, the system may malfunction.
Each time a tire inflation pressure has
been corrected or a wheel or tire has been
changed, reset the system.<
System limitations
TPM cannot warn you in advance of sud-
den severe tire damage caused by out-
side influences.<
The system does not work correctly if it has not
been reset; for example, a flat tire may be indi-
cated even though the tire inflation pressures
are correct.
The system is inactive and cannot indicate a flat
tire if a wheel without TPM electronics, such as
a compact spare wheel, has been mounted, or if
TPM is temporarily malfunctioning due to other
systems or devices using the same radio fre-
quency.
Resetting the system
Each time a tire inflation pressure has
been corrected or a wheel or tire has been
changed, reset the system.<
For operating principle refer to page 58.
68
Online Edition for Part no. 01 41 0 012 865 - © 08/06 BMW AG
1. Start the engine, but do not start driving.
2. Lightly push button 1 in the turn indicator
lever up or down repeatedly until the corre-
sponding symbol appears in the display
accompanied by the word "RESET".
3. Press button 2 to confirm your choice of the
Tire Pressure Monitor.
4. Press button 2 for approx. 5 seconds, until
the reading shown below is displayed.
5. Start to drive.
After driving a few minutes, the set inflation
pressures in the tires are accepted as the
target values to be monitored. The system
reset is completed during your drive without
any feedback, and can be interrupted at any
time. When driving resumes, the reset is
continued automatically.
Message for low tire inflation pressure
The warning lamps come on in yellow
and red. In addition, a signal sounds.
There is a flat tire or substantial loss
of tire pressure.
1. Cautiously reduce speed to below 50 mph/
80 km/h. Avoid sudden braking and steer-