Mercedes-Benz Sprinter 2018 Operating Instructions Manual page 300

298 Breakdown assistance
the start-up behaviour may deteriorate, par‐
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ticularly at low temperatures
it is recommended that you have a thawed
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battery checked at a qualified specialist work‐
shop
* 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
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to start the engine.
Observe the following points during starting
assistance and when charging the battery:
only use undamaged jump leads/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 leads/charging cables
are connected to the battery/jump-start con‐
nection point
the jump leads/charging cable must not
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come into contact with any parts which may
move when the engine is running
always make sure that neither you nor the
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battery is electrostatically charged
always keep away from fire and naked flames
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do not lean over a battery
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when charging: only use a battery charger
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that has been tested and approved by
Mercedes-Benz and read the operating
instructions for your charger before charging
the battery.
Observe the additional following points during
starting assistance:
starting assistance may only be provided
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using batteries with a nominal voltage of 12 V
the vehicles must not touch each other
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Vehicles with a battery main switch: check
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whether the battery main switch is switched
on ( page 126).
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Secure the vehicle using the parking brake.
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Vehicles with automatic transmission:
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shift the transmission to position j.
Vehicles with manual transmission: shift
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to neutral.
Switch off the ignition and all electrical con‐
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sumers.
Open the bonnet (
/
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Example: jump-start connection point
%
Right-hand-drive vehicles: the jump-start
connection points may be on the opposite
side.
Remove the cover from the positive terminal
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on the donor battery.
First, connect the positive terminal clamp of
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the jump leads/charging cables to the posi‐
tive terminal of the other vehicle's battery.
With positive terminal clamp
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lead, slide the red protective cap on jump-
start connection point
wise turn.
Connect the positive terminal clamp to the
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positive terminal of jump-start connection
point 1.
During starting assistance: start the engine
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of the donor vehicle and let it run at idle
speed.
Connect the negative terminal of the donor
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battery to the earth point of your own vehicle
with the jump lead/charging cable. Begin
with the donor battery.
During starting assistance: start the engine
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on your own vehicle.
When charging: start the charging process.
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During starting assistance: let the engine
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run for a few minutes.
During starting assistance: before discon‐
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necting the jump lead, switch on an electrical
page 279).
2 of the jump
1 back with a clock‐