Mercedes-Benz MERCEDES-BENZ S Automobile User Manual


 
117
If the battery is discharged, the engine
should be started with jumper cables
and the (12 V) 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).