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Practical hints
What to do if ...?
Lamps in instrument cluster
Problem
-
The yellow ABS indicator lamp
comes on while driving.
360
General information:
If any of the following lamps in the instru-
ment cluster fails to come on during the
Possible cause/consequence
The ABS has detected a malfunction and has
switched off. The BAS and the ESP
switched off (see messages in display).
The brake system is still functioning normally
but without the ABS available.
If the ABS control unit is malfunctioning,
other systems such as the navigation
system* or the automatic transmission may
also be malfunctioning.
The charging voltage has fallen below
10 volts. The ABS has switched off.
The battery might not be charged sufficiently.
bulb self-check when switching on the igni-
tion, have the respective bulb checked and
replaced if necessary.
Suggested solution
Continue driving with added caution.
®
are also
Wheels will lock during hard braking,
reducing steering capability.
Read and observe messages in the
multifunction display ( page 372).
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.
When the voltage is above this value
again, the ABS is operational again and
the ABS indicator lamp should go out.
If the ABS indicator lamp does not go out:
Have the generator (alternator) and
the battery checked.
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