342 Practical hints
What to do if …
Symbol messages
Display symbolDisplay messagePossible cause/consequencePossible solution
#The battery is no longer charging.
Possible causes:
alternator malfunctioning
broken poly-V-belt
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.
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412 Technical data
Layout of poly-V-belt drive
For dimensions of the poly-V-belt, see
technical data (
page 413).
G 5001 Automatic belt tensioner
2 Power steering pump
3 Air conditioning compressor
4 Crankshaft
5 Coolant pump
6 Generator (alternator)
7 Idler pulleyG55AMG
The G 55 AMG has two poly-V-belts
(belt one shown in purple/belt two shown
in black).
1 Idler pulley
2 Automatic belt tensioner
3 Power steering pump
4 Air conditioning compressor
5 Crankshaft
6 Coolant pump
7 Generator (alternator)
8 Idler pulley
9 Automatic belt tensioner
a Supercharger
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