Mercedes-Benz G-Class Owner's Manual page 378

Practical advice
Jump-starting
The jump-starting contacts are in the en-
gine compartment.
P54.10-2183-31
1 Cover
2 Positive terminal (+)
3 Negative terminal (–)
378
Remove cover 1 from the positive ter-
minal and likewise on the donor vehi-
cle.
Connect positive terminals 2 of both
batteries with the jump lead. Start with
the second battery.
Run the donor vehicle's engine at idling
speed.
Connect negative terminals 3 of both
batteries with the jump lead. Start with
the second battery.
Nur fuer internen Gebrauch
Start the engine.
You can now switch the electrical con-
sumers back on, but do not switch on
the lights.
First disconnect the jump lead from
negative terminals 3 of the batteries,
and then from positive terminals 2.
Have the battery checked at a qualified
specialist workshop, e.g. a Mercedes-
Benz Service Centre.