BMW Z4 sDrive35is 2011 - Manual (Page 84)

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.
Reset the system after each correction of the
tire inflation pressure and after every tire or
wheel change.
System limits
Sudden tire damage
Sudden serious tire damage caused by
external influences cannot be indicated in ad‐
vance.◀
The system does not function properly if it has
not been reset, e.g., it may identify a tire as flat
in spite of the fact that the tire is filled to the cor‐
rect inflation pressure.
The system is deactivated and is unable to de‐
tect flat tires if a wheel not equipped with TPM
electronics has been mounted, e.g., a compact
wheel, or if TPM is experiencing temporary in‐
terference from other systems or devices that
use the same frequency.
Status indicator on the Control Display
The tire and system status is indicated by the
color of the tires.
TPM takes into account that tire pressures
change while the vehicle is being driven. The tire
pressures do not need to be corrected unless
the TPM instructs you to do so by means of color
indicators.
Green
The tire inflation pressure corresponds to the
established target value.
"TPM active" appears on the Control Display.
One wheel is yellow
There is a flat tire or substantial loss of tire pres‐
sure in the indicated tire. A message appears on
the Control Display.
All wheels are yellow
There is a flat tire or substantial loss of tire pres‐
sure in several tires. A message appears on the
Control Display.
Gray
The system cannot detect a flat tire.
Possible reasons for this:
▷ TPM is being reset.
▷ Temporary malfunction caused by systems
or devices using the same radio frequency.
▷ Malfunction.
Resetting the system
Reset the system after each correction of the
tire inflation pressure and after every tire or
wheel change.
1. Press the button. The start menu is
opened.
2. "Vehicle Info"
3. "Vehicle status"
4. "Reset TPM"
5. Start the engine, but do not start driving.
6. Start the initialization with "Reset TPM".
7. Drive away. The tires are shown in gray and
"Resetting TPM..." is displayed.
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, and can be inter‐
rupted at any time. When driving resumes, the
reset is continued automatically. On the Control
Display, the tires are shown in green and "TPM
active" is displayed again.
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Safety