Mercedes-Benz B-Class hatchback 2022 Owner's Manual page 375

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372 Breakdown assistance
Automatic transmission: the transmission is in
R
position j.
Manual transmission: the transmission is in
R
neutral.
The vehicle and all electrical consumers are
R
switched off.
The bonnet is open.
R
Slide cover
1
of positive clamp
#
jump-starting connection point in the direction
of the arrow.
Connect positive clamp
2
#
the positive pole of the donor battery using
the jump lead/charging cable. Always begin
with positive clamp
2
on your own 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 earth point
3
of your own vehicle by
using the jump lead/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 jump lead, switch on an electrical con-
2
on the
sumer on your own vehicle, e.g. the rear win-
dow heater or lighting.
When the starting assistance/charging process is
on your vehicle to
complete:
First, remove the jump lead/charging cable
#
from earth point
the donor battery, then from positive clamp
2
and the positive pole of the donor battery.
Begin each time with the contacts on your
own vehicle first.
After removing the jump lead/charging cable,
#
close cover
Plug-in hybrid: if your vehicle has been started
with starting assistance, it may not be possible to
use the electric drive for approximately 30
minutes.
Further information can be obtained at a qualified
specialist workshop.
Replacing the 12 V battery
Observe the notes on the 12 V battery
#
(
page 369).
/
3
and the negative pole of
1
of positive clamp 2.

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