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Functional requirements
The system must have been initialized when
the tire inflation pressure was correct; other‐
wise, reliable signaling of a flat tire is not en‐
sured.
Initialize 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.◀
A natural, even pressure loss in all four tires
cannot be detected. Therefore, check the tire
inflation pressure regularly.
The system could be delayed or malfunction in
the following situations:
▷ When the system has not been initialized.
▷ When driving on a snowy or slippery road
surface.
▷ Sporty driving style: slip in the drive wheels,
high lateral acceleration.
▷ When driving with snow chains.
When the vehicle is driven with a compact
wheel, refer to page 239, the Flat Tire Monitor
is not functional.
Status display
The current status of the Flat Tire Monitor can
be displayed on the Control Display, e.g.,
whether or not the FTM is active.
1.
"Vehicle Info"
2. "Vehicle status"
3. "Flat Tire Monitor"
The status is displayed.
Initialization
The initialization process adopts the set infla‐
tion tire pressures as reference values for the
detection of a flat tire. Initialization is started by
confirming the inflation pressures.
Do not initialize the system when driving with
snow chains.
1.
"Vehicle Info"
2. "Vehicle status"
3. "Reset"
4. Start the engine, but do not start driving.
5. Start the initialization with "Reset".
6. Drive away.
The initialization is completed while driving,
which can be interrupted at any time. The initi‐
alization automatically continues when driving
resumes.
Seite 81
Safety
Controls
81
Online Edition for Part no. 01 40 2 911 452 - VI/13
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