BMW X5 xDrive35d 2009 - Manual (Page 104)

Technology for comfort, convenience and safety
102
the tire inflation pressure has dropped consid-
erably in one or several tires.
Function requirements
In order to assure the reliable reporting of a flat
tire, the system must have been reset with the
correct tire inflation pressure.
Always use wheels with TPM electronics, oth-
erwise fault-free operation of the system is not
ensured.
Reset the system again after each correc-
tion of the tire inflation pressure and after
every tire or wheel change. <
System limits
TPM cannot announce sudden serious
tire damage caused by external influ-
ences. <
The system does not function properly if it has
not been reset, e.g. a flat tire is reported despite
correct tire inflation pressures.
The system is inactive and cannot display a flat
tire if a wheel has been mounted without TPM
electronics, e.g. a compact wheel
* , or if TPM is
temporarily interfered with by other systems or
devices which use the same radio frequency.
Status display on Control Display
The tire and system status is indicated by the
color of the tires.
TPM takes the fact that the tire pressure
changes during driving into account. A correc-
tion is only required if requested by TPM with
the color.
Green
The tire pressure matches the learned set state.
"TPM active" is displayed on the Control Dis-
play.
One wheel is yellow
Flat tire or a major drop in inflation pressure in
the indicated tire. A message appears on the
Control Display.
All wheels are yellow
Flat tire or a major drop in inflation pressure in
several tires. A message appears on the Control
Display.
Gray
The system cannot detect a flat tire.
Reasons for this can be:
> TPM is being reset
> Temporary interference due to systems or
devices which use the same radio fre-
quency
> Malfunction
Resetting system
Reset the system again after each correc-
tion of the tire inflation pressure and after
every tire or wheel change. <
Resetting finishes during driving, which can be
interrupted at any time. When driving resumes,
resetting is continued automatically. Do not
reset the system when driving with a compact
wheel
* .
iDrive, for operating principle refer to page 16 .
1. Press the button.
This opens the start menu.
2. Press the controller to open the menu.
3. Select "Settings" and press the controller.
4. Select "Vehicle / Tires" and press the con-
troller.
5. Change to upper field if necessary. Turn the
controller until "TPM" is selected and press
the controller.
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