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Practical hints
What to do if …
Symbol messages
Display symbol Display messages Possible cause Possible solution
#
Undervoltage
Switch off
consumers
The battery has insufficient voltage. ̈ Turn off unnecessary electrical con-
sumers.
Visit workshop!
The battery was charged with a battery
charger or jump started.
̈ Have the battery checked at a service
station.
The battery is no longer charging.
Possible causes:
ț alternator malfunctioning
ț broken poly-V-belt
Do not forget that the brake system re-
quires electrical energy and may be oper-
ating with restricted capability.
Considerably greater brake pedal force is
required and the stopping distance is in-
creased.
̈ Stop immediately and check the
poly-V-belt.
If it is broken:
̈ Do not continue to drive. Otherwise
the engine will overheat due to an in-
operative water pump which may re-
sult in damage to the engine. Notify
an authorized Mercedes-Benz Center.
If it is intact:
̈ Drive immediately to the nearest au-
thorized Mercedes-Benz Center. Ad-
just driving to be consistent with
reduced braking responsiveness.