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Practical hints
What to do if …
왔 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
indicator lamp comes on while
driving.
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.
왘 Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
왘 Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions
increases the risk of an accident.
왘 Read and observe messages in the
display (
컄 page 280).
The charging voltage has fallen below ten
volts. The ABS has switched off.
왘 When the voltage is above this value
again, the ABS is operational again.
왘 If necessary, have the generator
(alternator) and battery checked.