Mercedes-Benz GLC 200 4MATIC Owner's Manual page 414

Vehicles with a petrol engine: jump-start the
R
vehicle only when the engine and exhaust sys-
tem are cold.
Starting assistance and charging the 12 V battery
Preparing starting assistance/charging
Secure the vehicle by applying the electric
#
parking brake.
Shift the transmission to position j.
#
Switch off the vehicle and all electrical con-
#
sumers.
Open the bonnet.
#
Open cover 1 of the jump-starting connec-
#
tion points.
Open cover 3 of positive contact
#
jump-starting connection points.
Starting assistance
Connect positive contact 2
#
to the positive terminal of the donor battery
using the jump lead. Always begin with posi-
tive contact
Start the engine of the donor vehicle and run
#
it at idling speed.
Connect the negative terminal of the donor
#
battery to earth point
the jump lead. Begin with the donor battery
first.
Start the engine of your own vehicle.
#
Let the engines run for several minutes.
#
Before disconnecting the jump leads, switch
#
on an electrical consumer in your own vehicle,
e.g. the rear window heater or the lighting.
When the starting assistance procedure is com-
plete:
First, remove the jump leads from earth point
#
4 and the negative terminal of the donor bat-
2 of the
tery, then from positive contact
positive terminal of the donor battery. Begin
each time with the contacts on your own vehi-
cle first.
on your vehicle
Breakdown assistance 411
2 on your own vehicle first.
4 of your vehicle using
2 and the