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376 Breakdown assistance
The ignition and all electrical consumers are
R
switched off.
The hood is open.
R
Slide cover
1
of positive clamp
#
jump-starting connection point in the direc‐
tion of the arrow.
Connect positive clamp
2
on your vehicle to
#
the positive pole of the donor battery using
the jumper cable/charging cable. Always
begin with positive clamp
vehicle first.
During starting assistance: start the
#
engine of the donor vehicle and run at idle
speed.
Connect the negative pole of the donor bat‐
#
tery and ground point
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
#
charging process.
During starting assistance: let the engines
#
run for several minutes.
During starting assistance: before discon‐
#
necting the jumper cable, switch on an elec‐
2
on the
trical consumer in your own vehicle, e.g. the
rear window heater or lighting.
When the starting assistance/charging process
is complete:
First, remove the jumper cable/charging
#
2
on your own
cable from ground point
pole of the donor battery, then from positive
clamp
battery. Begin each time with the contacts
on your own vehicle first.
After removing the jumper cable/charging
#
cable, close cover
3
of your own vehicle
Further information can be obtained at a quali‐
fied specialist workshop.
Replacing the 12 V battery
Observe the notes on the 12 V battery
#
(
page 372).
/
Mercedes-Benz recommends that you have the
12 V battery replaced at a qualified specialist
workshop, e.g. at an authorized Mercedes-Benz
Center.
3
and the negative
2
and the positive pole of the donor
1
of positive clamp 2.
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