Mercedes-Benz 2008 CL-Class Operator's Manual page 610

Problem
-
The yellow Antilock
Brake System (ABS)
indicator lamp comes on
while the engine is run-
ning.
;
The red brake warning
(USA only) lamp comes on while the
engine is running. In addi-
3
tion, the yellow ABS mal-
(Canada only)
function indicator lamp,
-
and the yellow ESP
v warning lamp come on
and an acoustic warning
sounds.
Possible cause/consequence
The charging voltage has fallen below
10 volts. The ABS has switched off.
The battery may not be charged sufficiently.
A malfunction in the Electronic Brake Pro-
portioning (EBP) was detected. The ABS,
® ®
BAS, ESP and PRE-SAFE
switched off (see messages in multifunction
display).
®
The brake system continues to function
normally, but without electronic support.
Suggested solution
When the voltage is above this value again,
the ABS is operational again and the ABS in-
dicator lamp should go out.
If the ABS indicator lamp does not go out:
Have the generator (alternator) and the
battery checked.
When the voltage is above this value again,
the ABS is operational again.
Continue driving with added caution.
Wheels may lock during hard braking,
are also reducing steering capability.
Read and observe messages in the mul-
tifunction display ( page 622).
Have the system checked at an autho-
rized Mercedes-Benz Center as soon as
possible.
Failure to follow these instructions increas-
es the risk of an accident.
Practical hints
What to do if ...?
609