Mercedes-Benz GLS 2023, Operator'S Manual

Page: 367 / 538

Example: engine compartment
#
Slide cover 1 of POSITIVE contact 2 on the
jump-starting connection point in the direction
of the arrow.
#
Connect POSITIVE contact 2 on your vehicle
to the positive terminal of the donor battery
using the jumper cable/charging cable.
Always begin with POSITIVE contact
2
on
your own vehicle first.
#
During starting assistance: start the engine of
the donor vehicle and run at idle speed.
#
Connect the negative terminal of the donor
battery and ground point 3 of your own vehi-
cle by using the jumper cable/charging cable.
Begin with the donor battery first.
#
During starting assistance: start the engine of
your own vehicle.
#
During the charging process: start the charg-
ing process.
#
During starting assistance: let the engines run
for several minutes.
#
During starting assistance: before disconnect-
ing the jumper cable, switch on an electrical
consumer on your own vehicle, e.g. the rear
passenger compartment window defroster or
lighting.
When the starting assistance/charging process is
complete, perform the following steps:
#
First, remove the jumper cable/charging cable
from ground point 3 and the negative termi-
nal of the donor battery, then POSITIVE con-
tact 2 and the positive terminal of the donor
battery. Begin each time with the contacts on
your own vehicle first.
#
After removing the jumper cable/charging
cable, close cover 1 of POSITIVE contact
2 .
Further information can be obtained at a qualified
specialist workshop.
Replacing the 12 V battery
#
Observe the notes on the 12 V battery
(
/
page 361).
Mercedes-Benz recommends that you have the
12 V battery replaced at a qualified specialist
workshop, e.g. at an authorized Mercedes-Benz
Center.
Breakdown assistance 365