Wheels
A
WARNING
Please observe the important safety informa
tion and notes<=>
page
260.
Possible malfunctions
Applies to: vehicles with tyre pressure monitoring system
If the tyre pressure monitoring system is inoper
ative, the indicator lamp
mm
will appear in the
instrument cluster display together with the
message
Tyre pressure: fault. See owner's man
ual.
If the indicator lamp
mm
appears after you have
switched on the ignition or while you are driving
and the indicator lamp[I] flashes for approxi
mately one minute and then remains lit, there is
a fault in the system. This fault can have the fol
lowing causes:
- If the display appears at the end of the initiali
sation process, this means that the system can
not detect the wheel sensors required to moni
tor the pressures. This can happen if one or
more of the tyres fitted does not have a sensor
or the sensors are incompatible.
- One of the wheel sensors or another compo
nent may not be working.
- Snow chains interfere with the signals trans
mitted by the sensors and can prevent the sys
tem from functioning properly.
- The tyre pressure monitoring system may be in
operative due to radio interference.
- Radio systems operating on the same frequen
cy, such as radio headphones or two-way radios
inside the vehicle, produce strong electromag
netic fields which cause temporary interfer
ence.
The indicator lamp
mm
and the message will
disappear as soon as the tyre pressure monitor
ing system is available again. If the fault persists
and the indicator lamp
mm
stays on, you should
drive to a qualified workshop and have the fault
rectified.
262
