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What to do if …?
Display message Possible cause/consequence Possible solution
ABS
Anti-lock
braking system
inoperative
The charging voltage has fallen below
10 volts and the ABS has switched off.
The brake system is still functioning nor-
mally but without the ABS available.
̈ When the voltage is above this value
again, the ABS is operational again.
̈ 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.