Mercedes-Benz G-Class 2022 Operator's Manual page 387

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384 Breakdown assistance
* NOTE Damage caused by numerous or
extended attempts to start the engine
Numerous or extended attempts to start the
engine may damage the catalytic converter
due to non-combusted fuel.
Avoid numerous and extended attempts
#
to start the engine.
Observe the following points during starting assis-
tance and when charging the battery:
Only use undamaged jump lead/charging
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cables with a sufficient cross-section and
insulated terminal clamps.
Non-insulated parts of the terminal clamps
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must not come into contact with other metal
parts while the jump lead/charging cable is
connected to the battery/jump-start connec-
tion point.
The jump lead/charging cable must not come
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into contact with any parts which may move
when the engine is running.
Always make sure that neither you nor the bat-
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tery is electrostatically charged.
Keep away from fire and naked flames.
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Do not lean over the battery.
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Observe the additional following points when
charging the battery:
Only use battery chargers tested and
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approved for Mercedes-Benz.
Read the battery charger's operating instruc-
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tions before charging the battery.
Observe the additional following points during
starting assistance:
For starting assistance, only use batteries with
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a nominal voltage of 12 V.
The vehicles must not touch.
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Petrol engine: only accept starting assistance
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if the engine and exhaust system are cold.
Starting assistance and charging the 12 V battery
Requirements
The vehicle is secured with the electric park-
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ing brake.
The transmission is in position j.
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The vehicle and all electrical consumers are
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switched off.
The bonnet is open.
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Slide cover
1
of positive contact
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jump-starting connection point in the direction
of the arrow.
Connect positive contact
2
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to the positive terminal of the donor battery
2
on the
on your vehicle

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