Mercedes-Benz G-Class Operator's Manual page 234

Battery
232
The jump-starting connection point is in the
engine compartment (
X
Open the hood (
X
Connect the battery charger to the positive
terminal and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure
( Y page 233).
X
Read the battery charger's operating
instructions before charging the battery.
Y page 233).
Y page 210).