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improper connection of jumper cables,
smoking, etc.
Attempting to jump start a frozen battery can
result in it exploding, causing personal injury.
Read all instructions before proceeding.
G
Warning!
HYBRID vehicles: It is imperative that you read
the HYBRID Supplemental Operating
Instructions included in your vehicle literature
portfolio. You may otherwise not receive all
necessary safety information and warning for
the operation of your vehicle.
!
Do not tow-start the vehicle. You could
otherwise seriously damage the automatic
transmission which is not covered by the
Mercedes-Benz Limited Warranty.
!
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.
Make sure the cable clamps do not touch
any other metal part while the other end is
still attached to a battery.
If the battery is discharged, the engine can be
started with jumper cables and the fully
charged battery of another vehicle or an
equivalent starter pack. Observe the
following:
R
Access to the battery is not possible on all
vehicles. If you cannot access the battery
of the other vehicle, provide jump start
power by an external battery or starter
pack.
R
Jump starting should only be performed
when the engine and catalytic converter
are cold.
R
Do not jump start the engine or charge the
battery 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. Such
damage will not be 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.
X
Make sure the two vehicles do not touch.
X
Switch off all electrical consumers.
X
Engage the electronic parking brake.
X
Make sure the automatic transmission is in
park position P.
X
Open the hood (Y page 404).
Jump starting
515
Practical hints
221_AKB; 6; 20, en-US
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