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Practical hints
What to do if …
Problem Possible cause Suggested solution
- The yellow ABS malfunction indi-
cator lamp comes on while driv-
ing.
ABS has detected a malfunction and has
switched off. The BAS, ESP, 4-ETS and EBP
are also switched off.
The brake system is still functioning normally
but without ABS available.
̈ Continue driving with added caution.
Wheels will lock during hard braking
reducing steering capability.
̈ Have the system checked at an autho-
rized Mercedes-Benz Light Truck Cen-
ter as soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.
The charging voltage has fallen below
10 volts. The ABS has switched off.
When the voltage is above this value
again, the ABS is operational again.
̈ If necessary, have the generator and
the battery checked.
¿ The yellow malfunction indicator
lamp comes on while driving.
The ESP is no longer synchronized following
a voltage supply interuption (e.g. battery dis-
connected or discharged).
Synchronize the ESP:
̈ Turn the steering wheel from stop lim-
it to stop limit.
The indicator lamp goes out.
The charging voltage has fallen below
10 volts. The BAS and ESP have switched off.
When the voltage is above this value
again, the BAS and ESP are operational
again.
̈ If necessary, have the generator and
the battery checked.