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Practical hints
What to do if …
Text messages
Display message Possible cause Possible solution
BAS
BRAKE ASSIST
NOT AVAILABLE!
The charging voltage has fallen below ten
volts. The BAS has switched off.
̈ When the voltage is above this value
again, the BAS is operational again.
̈ If necessary, have the generator and
battery checked.
BRAKE ASSIST
VISIT WORKSHOP!
The BAS has detected a malfunction and
switched off. The brake system is still
functioning normally but without the BAS
available.
̈ Continue driving with added caution.
̈ 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.
DISPLAY MALFUNCTION
VISIT WORKSHOP!
The BAS or the BAS display is
malfunctioning.
̈ Continue driving with added caution.
̈ 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.