Mercedes-Benz 2007 G-Class Operator's Manual page 345

Practical hints
What to do if ...
Symbol messages
Display symbol Display message
#
344
Possible cause/consequence
The battery is no longer charging.
Possible causes:
alternator malfunctioning
broken poly-V-belt
Possible solution
Stop the vehicle in a safe location or as soon
as it is safe to do so.
Apply the parking brake ( page 62).
Turn off the engine.
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.
Contact an authorized Mercedes-Benz Light
Truck Center.
If it is in order:
Contact an authorized Mercedes-Benz Light
Truck Center immediately.