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.
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.
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.
3. Perform a reset of the system.
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.
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. Reduce your speed and carefully stop the ve‐
hicle. Avoid violent or sudden braking and
steering manoeuvres.
What to do in the event of a flat
tyre
1.
Identify the damaged tyre.
Check the tyre inflation pressure in all four
tyres, for example using the tyre pressure in‐
dicator of a flat tyre kit.
In the case of tyres with special approval: if all
four tyres are inflated to the correct tyre infla‐
tion pressures, the Tyre Pressure Monitor
might not have been reset. Perform a reset.
If no tyre damage can be identified, contact a
Service Partner of the manufacturer or an‐
other qualified Service Partner or a specialist
workshop.
2.
Repair the flat tyre, for example using a flat
tyre kit or by changing the wheel.
The use of sealant, for example a flat tyre kit, can
damage the TPM wheel electronics. Have the
electronics replaced at the next opportunity.
System limits
Temperature
The tyre inflation pressure depends on the tem‐
perature of the tyre.
The tyre inflation pressure increases as the tyre
temperature increases, for example during driv‐
ing or due to exposure to sunlight.
Seite 322
MOBILITY
Wheels and tyres
322
Online Edition for Part no. 01402989787 - II/18
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