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Practical hints
What to do if …?
̄ What to do if …?
Lamps in instrument cluster General information:
If a bulb in the instrument cluster fails to
come on during the bulb self-check when
turning the SmartKey in the starter switch
to position 2, have it checked and replaced
if necessary.
Problem Possible cause Suggested solution
- The yellow ABS malfunction indi-
cator lamp comes on while driv-
ing.
The ABS has detected a malfunction and has
switched off. The BAS and the ESP are also
switched off (see messages in display).
The brake system is still functioning normally
but without the ABS available.
̈ Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
̈ Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
̈ Read and observe messages in the
display (
୴ page 320).
The charging voltage has fallen below
10 volts and the ABS has switched off.
When the voltage is above this value
again, the ABS is operational again.
̈ If necessary, have the generator (al-
ternator) and battery checked.