If the tyre inflation pressure is
insufficient
Message
A yellow warning lamp is illuminated in
the instrument cluster.
In addition, a symbol with a Check Control mes‐
sage is shown on the Control Display.
Symbol Possible cause
There has been a loss of tyre infla‐
tion pressure.
Measure
1.
Reduce speed. Do not exceed a speed of
130 km/h, 80 mph.
2. At the next opportunity, for example at a filling
station, check the tyre inflation pressure in all
four tyres and correct if necessary.
If there is a significant loss of tyre
inflation pressure
Message
A yellow warning lamp is illuminated in
the instrument cluster.
In addition, a symbol with the affected tyre is
shown in a Check Control message on the Con‐
trol Display.
Symbol Possible cause
There is a flat tyre or substantial loss
of tyre inflation pressure.
Measure
1.
Reduce your speed and carefully stop the ve‐
hicle. Avoid violent or sudden braking and
steering manoeuvres.
Messages: for tyres with special
approval
General
Dynamic Stability Control DSC will be activated if
necessary as soon as a message for low tyre in‐
flation pressure appears.
Safety note
WARNING
A damaged normal tyre with too little or no tyre
inflation pressure impairs driving properties, for
example steering and braking. There is a dan‐
ger of accidents. Do not continue driving. Re‐
pair the flat tyre or replace the wheel.
If a tyre inflation pressure test is
required
Message
A symbol with a Check Control message is
shown on the Control Display.
Sym‐
bol
Possible cause
The tyre was not inflated properly, for
example insufficient air added.
The system has detected a wheel
change, but no reset has been run.
The tyre inflation pressure has drop‐
ped compared to the last reset.
No reset has been performed on the
system. The system uses the tyre in‐
flation pressures saved during the
last reset for the warning.
Measure
1.
Check the tyre inflation pressure and adjust
as necessary.
2. Perform a reset of the system.
Seite 321
Wheels and tyres
MOBILITY
321
Online Edition for Part no. 01402989787 - II/18
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