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Practical hints
What to do if …
Text messages
Display message Possible cause/consequence Possible solution
ABS
ABS, ESP
inoperative
See Operator’s Man.
ABS, ESP
®
as well as PRE-SAFE
®
have switched off due to a malfunc-
tion.
BAS is also switched off.
The brake system is still functioning
normally but without the ABS, BAS,
ESP
®
and PRE-SAFE
®
available.
̈ Continue driving with added caution.
Wheels will lock during hard braking, reduc-
ing steering capability.
̈ 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.
ABS, ESP
unavailable
See Operator’s Man.
The ABS, ESP
®
as well as PRE-SAFE
®
were deactivated because of insuffi-
cient power supply. The charging
voltage has fallen below 10 volts.
BAS is also switched off.
The brake system still functions nor-
mally but without the ABS, BAS,
ESP
®
and PRE-SAFE
®
available.
When the voltage is above this value again, the
ABS, ESP
®
and PRE-SAFE
®
are operational
again and the message should disappear.
If the message does not disappear:
̈ Have the generator (alternator) and the bat-
tery checked.