WheTyerles arenpdatiyrres
After storing the new inflation pressure, a confir-
mation message will be displayed, the warning
light in the instrument cluster will flash briefly
and a driver alert tone will be played.
Troubleshooting
●
If the tyres have no punctures and do not
need to be replaced immediately, drive to
the nearest specialist workshop at low speed
and have the tyre pressure checked and cor-
rected.
Low tyre pressure
The control lamp switches on yellow.
The tyre pressure loss indicator uses the
ABS sensors to compare the turns of each
wheel and, therefore, their tread circumferen-
ces, among other aspects. The set values are
collected and monitored after a long journey at
dierent speeds.
The inflation pressure of one or more wheels is
much lower than the value set by the driver, or
the tyre has structural damage.
Note
●
●
Stop the vehicle! Stop the vehicle safely
When driving for the first time with new
tyres at high speeds, the tyres may expand
slightly, which may result in an air pressure
warning.
as soon as possible.
●
●
For example, if the wheels are under very heavy
loads, the tyre pressure must be increased to
the total recommended tyre pressure before
calibration ››› Fig. 201.
Check all tyres and pressures.
Replace any damaged tyres.
●
If a low tyre pressure is detected when the
OR: Fault in the tyre pressure gauge.
ignition is switched on, an audible warning
will sound. If the system fails, an audible sig-
nal sounds.
Consult a specialised workshop if the tyre pres-
sure is correct and the lamp remains lit after
switching the ignition o and back on again.
WARNING
●
Driving on unpaved roads for a long period
If the tyres are inflated to diꢀerent pressures,
or to a pressure that is too low, a tyre may be
damaged and control of the vehicle may be
lost. This could lead to a serious or even fatal
accident.
of time, or sporty driving, may temporarily
deactivate the system. The warning lamp
shows a fault, but disappears when road
conditions or driving behaviour change.
Tyre repair
TMS (Tyre Mobility System) puncture
repair kit
●
Do not only rely on the tyre pressure mon-
●
If the lamp lights up, reduce speed im-
itoring system. Check the tyres regularly to
ensure that the tyre pressures are correct
and that the tyres are free of damage such
as punctures, cuts, gouges and dents. Re-
move any non-puncturing objects from the
tyres.
mediately and avoid any sudden turning or
braking manoeuvres. Stop as soon as possi-
ble, and check the pressure and status of all
tyres.
The puncture repair kit (Tyre Mobility System)
will reliably seal punctures caused by the pen-
etration of a foreign body of up to about 4 mm
in diameter. Do not remove foreign objects,
e.g. screws or nails, from the tyre.
●
The tyre pressure loss indicator only works
correctly if all the tyres are at the correct
pressure when cold, and it is subsequently
calibrated according to the described pro-
cedure.
●
The tyre pressure monitoring indicator
does not function when there is a fault in the
After inserting the sealant residue in the tyre,
you must again check the tyre pressure about
10 minutes after starting the engine.
ESC or ABS ››› page 129.
297