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Practical hints
What to do if ...
What to do if ...
Lamps in instrument cluster
Problem
-
The yellow ABS indicator lamp
comes on while driving.
252
General information:
If a bulb in the instrument cluster fails to
come on during the bulb self-check when
Possible cause
You engaged the differential locks. The ABS,
ESP, BAS, EBB and 4-ETS are switched off.
The ABS has detected a malfunction and has
switched off. The ESP, BAS, EBB and 4-ETS
are also switched off (see messages in dis-
play).
If the ABS control unit is malfunctioning, oth-
er systems such as the navigation system or
Rear Parking Assist* may also malfunction.
The brake system is still functioning normally
but without the ABS available.
turning the SmartKey in starter switch to
position 2, have it checked and replaced if
necessary.
Suggested solution
The driving systems will switch on
again after the differential locks have
been disengaged.
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.
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