Mercedes-Benz MERCEDIES-BENZ Automobile User Manual


 
122
If the battery is discharged, the engine
should be started with jumper cables and
the (12V) battery of another vehicle.
The battery is located in the trunk behind
the right-hand cover panel.
Proceed as follows:
1. Position the vehicle with the charged
battery so that the jumper cables will
reach, but never let the vehicles
touch. Make sure the jumper cables
do not have loose or missing
insulation.
2. On both vehicles:
Turn off engine and all lights and
accessories, except hazard
warning flashers or work lights.
Apply parking brake and shift
selector lever to position "P".
Important!
3. Clamp one end of the first jumper
cable to the positive (+) terminal of
the discharged battery and the other
end to the positive (+) terminal of the
charged battery. Make sure the cable
clamps do not touch any other metal
parts.
4. Clamp one end of the second jumper
cable to the grounded negative (-)
terminal of the charged battery and
the final connection to the negative
(-) terminal of the discharged
battery.
Important!
5. Start engine of the vehicle with
the charged battery and run at high
idle. Make sure the cables are not
on or near pulleys, fans, or other
parts that will move when the engine
is started. Then start engine of the
disabled vehicle in the usual manner.
6. After the engine has started,
remove jumper cables by exactly
reversing the above installation
sequence, starting with the last
connection made first. When
removing each clamp, make sure
that it does not touch any other
metal while the other end is still
attached.
Important!
A discharged battery can freeze at
approx. +14°F (-10°C). In that case, it
must be thawed out before jumper
cables are used. A frozen battery can
explode and cause personal injury.
Jumper cable specifications:
Minimum cable cross-section of
25 mm
2
or approx. 2 AWG
Maximum length of 11.5 ft.
(3.5 m).