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What to do if …
294
Brake
Problem Possible cause/consequence Suggested solutions
-
The yellow ABS indicator
lamp comes on while the
engine is running.
The ABS has detected a malfunc-
tion and switched off. The BAS,
the ESP
®
and the hill start assist
system (SL 63 AMG only) are also
switched off (see messages in
multifunction display).
The electro-hydraulic brake sys-
tem is still functioning normally
but without the systems specified
above available.
If the ABS control unit is malfunc-
tioning, other systems such as
the navigation system or the
automatic transmission may also
be malfunctioning.
X
Continue driving with added caution. Wheels may lock during hard
braking, reducing steering capability.
X
Read and observe messages that may appear in the multifunction
display (Y page 255).
X
Have the system checked at an authorized Mercedes-Benz Center
as soon as possible.
Failure to follow these instructions increases the risk of an accident.
-
The yellow ABS indicator
lamp comes on while the
engine is running.
The ABS has switched off due to
insufficient power supply.
The battery might not be charged
sufficiently.
When the voltage is above the required value again, the ABS is opera-
tional again and the ABS indicator lamp should go out.
X
If the ABS indicator lamp does not go out: Have the alternator and
the battery checked.
Practical hints