Problem Possible causes/consequences and M Solutions
h Yellow warning
lamp lights up while
driving.
Colour display: Tyre
pressure Caution
tyre malfunction
appears.
The tyre pressure monitor has detected a significant loss of pres-
sure in at least one of the tyres.
G
WARNING
Underinflated or overinflated tyres pose the following risks:
R
the
tyres
may burst, especially as the load and vehicle speed
increase.
R
the tyres may wear excessively and/or unevenly, which may
greatly impair tyre traction.
R
the driving characteristics, as well as steering and braking,
may be greatly impaired.
There is a risk of an accident.
Observe the recommended tyre pressure and check the tyre pres-
sure of all the tyres:
R
at least every two weeks
R
when the load changes
R
before embarking on a longer journey
R
for changed operating conditions, e.g. off-road driving
If necessary, correct the tyre pressure.
X
Secure the vehicle against rolling away.
X
Check tyres visually and, if necessary, follow the instructions
for flat tyres.
X
Check the tyre pressure and correct it if necessary.
Colour display: h
Tyre pressure moni‐
tor inoperative
appears.
The tyre pressure monitor is malfunctioning or was not restarted
after a wheel change.
G
WARNING
If you correct the tyre pressure without recalibrating the Run
Flat
Indicator,
the system cannot issue a warning about a defec-
tive tyre in time. In the event of tyre pressure loss, the driving
characteristics and the steering and braking may be greatly
impaired. There is a risk of an accident.
If you correct the tyre pressure, you must recalibrate the Run
Flat Indicator.
X
Restart tyre pressure monitor.
The display message continues to be displayed.
X
Drive on carefully.
X
Consult a qualified specialist workshop.
174
Driving safety systems
>> Practical advice.
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