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Practical hints
What to do if ...?
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Undervoltage
Charge battery
Undervoltage
Switch off
consumers
374
Possible cause
The battery is no longer charging.
Possible causes:
broken poly-V-belt
alternator malfunctioning
The battery has insufficient voltage.
The battery has insufficient voltage.
Possible solution
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
inoperative water pump which may
result in damage to the engine. Notify
an authorized Mercedes-Benz Center.
If it is intact:
Drive immediately to the nearest
authorized Mercedes-Benz Center.
Start the engine ( page 46).
Turn off unnecessary electrical con-
sumers.
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