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If the preceding tyre sizes are complemented by
the + symbol, the tyre pressure information
following shows alternative tyre pressures. Fuel
consumption may then increase slightly.
The load conditions "partially laden" and "fully
laden" are defined in the table for different num‐
bers of passengers and amounts of luggage. The
actual number of seats may differ from this.
Tyre pressure monitoring system
Function of the tyre pressure monitoring sys‐
tem
The system checks the tyre pressure and the
tyre temperature of the tyres fitted to the vehicle
by means of a tyre pressure sensor.
The tyre pressure and the tyre temperature
appear in the on-board computer (
If there is a substantial pressure loss or if the
tyre temperature is excessive, you will be
warned with display messages (
the h warning lamp in the instrument cluster
(
page 448).
/
The tyre pressure monitoring system is only an
aid. It is the driver's responsibility to set the tyre
pressure to the recommended cold tyre pressure
suitable for the operating situation.
In most cases, the tyre pressure monitoring sys‐
tem will automatically update the new reference
values after you have changed the tyre pressure.
You can, however, also update the reference val‐
ues by restarting the tyre pressure monitoring
system manually (
System limits
The system may be impaired or may not function
particularly in the following situations:
incorrect reference values were taught in
R
sudden pressure loss caused by a foreign
R
object penetrating the tyre, for example
page 349).
/
there is a malfunction caused by another
R
radio signal source
Checking the tyre pressure with the tyre
page 428) or
/
pressure monitoring system
Requirements:
The ignition is switched on.
R
page 350).
/
Wheels and tyres 349
On-board computer:
Service
Tyres
4
5
One of the following displays appears:
Current tyre pressure and tyre temperature
R
of the individual wheels:
Tyre pressures will be displayed after a few
R
minutes of driving
Tyre pressure monitor
active: the teach-in
R
process of the system is not yet complete.
The tyre pressures are already being moni‐
tored.
Compare the tyre pressure with the recom‐
#
mended tyre pressure for the current operat‐
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