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Charge battery in accordance with the
separate instructions for the accessory
battery charger.
X
Open the hood, see Operators' Manual.
X
Follow the instructions in the separate
operating instructions of the charge unit.
X
Flip up cover 1 of the positive terminal in
direction of arrow.
X
Connect the positive terminal clamp of the
charge unit with positive terminal 2.
X
Slide cover = from the negative terminal
in direction of arrow.
X
Connect the negative terminal clip of the
charge unit with negative terminal ?.
X
Charge the 12-volt battery.
Disconnecting the charge unit
X
After the combustion engine has been
started, disconnect the charge unit. Follow
the instructions in the separate operating
instructions of the charge unit.
X
Close the hood.
X
Drive the vehicle for some time in order to
charge the 12-volt battery.
Jump starting
When the 12-volt battery or the high-voltage
battery is discharged, the combustion engine
can be started with jumper cables and the
battery of another vehicle.
Observe the following:
R
Jump starting should only be performed
when the combustion engine and the
catalytic converter are cold.
R
Do not jump start if the battery is frozen.
Let the battery thaw out first.
R
Only jump start from batteries with the
same voltage rating (12 V). Jump starting
with a more powerful battery could damage
the vehicle’s electrical system, which is not
covered by the Mercedes-Benz Limited
Warranty.
R
Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.
R
Always make sure the jumper cables are
not on or near pulleys, fans or other parts
that move when an engine is started or
running.
R
Should the battery be drained completely,
let the donating power source charge the
vehicle for several minutes before
reattempting the starting process.
i
Jumper cables and additional information
on jump starting are available at any
authorized Mercedes-Benz Center.
!
Jump starting should only be performed
using the jump-start terminals located in
the engine compartment.
Avoid repeated and lengthy starting
attempts.
Do not attempt to start the engine using a
battery quick-charge unit.
If the engine does not run after several
unsuccessful starting attempts, have it
checked at the nearest authorized
Mercedes-Benz Center.
Excessive unburned fuel generated by
repeated failed starting attempts may
damage the catalytic converter and may
present a fire risk.
Make sure the jumper cables do not have
loose or missing insulation.
Practical hints
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