Mercedes-Benz GLA 250, Operator'S Manual

Page: 257 / 402

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Keep away from fire and open flames.
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Do not lean over the battery.
Observe the additional following points when
charging the battery:
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Only use battery chargers tested and
approved for Mercedes-Benz.
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Read the battery charger's operating instruc‐
tions before charging the battery.
Observe the additional following points during
starting assistance:
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For starting assistance, only use batteries
with a nominal voltage of 12 V.
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The vehicles must not touch.
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Gasoline engine: Only accept starting assis‐
tance if the engine and exhaust system are
cold.
Starting assistance and charging the 12 V
battery
Requirements:
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The vehicle is secured with the electric park‐
ing brake.
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Automatic transmission: The transmission
is in position
j
.
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The ignition and all electrical consumers are
switched off.
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The hood is open.
#
Slide cover 1 of positive clamp 2 on the
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 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 ground point 3 of your own vehicle
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‐
Breakdown assistance 255