Jump Starting - Mercedes-Benz 300 SDL turbo 126 D Owner's Manual

Jump Starting

If the battery is discharged the engine
can be started with jumper cables and
the (12 V) battery of another vehicle.
Proceed as follows:
1. Position the vehicle with the
charged battery so that the jum­
per 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 flashers or work lights.
• Apply parking brake and shift
selector lever to position " P" .
• Be sure the vent caps are tight
and level. Place a damp cloth
over the vent caps, making
certain it is clear of all moving
parts.
3. Clamp one end of the first jumper
cable to the positive ( + ) terminal
on the discharged battery and the
other end to the positive ( + ) ter­
minal on the charged battery.
Make sure the cable clamps do
not touch any other metal parts.
4. Clamp one end of the second jum­
per cable to the grounded nega­
tive ( - ) terminal of the charged
battery and the final connection to
a grounded heavy metal bracket in
the engine compartment or on the
engine of the disabled vehicle.
Make sure the cables are not on
or near pulleys, fans, or other
parts that will move when the
engine is started.
5. Start engine of the vehicle with the
charged battery and run at high
idle. Then start engine of the disa­
bled vehicle in the usual manner.
6. After the engine has started,
remove jumper cables by revers­
ing the above installation sequ­
ence exactly, starting with the
jumper cable connected to a
heavy metal bracket in the disa­
bled vehicle's engine compart­
ment. 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. - 1 0 ° C (+ 1 4 ° F). In that
case it must be thawed out before
jumper cables are used.
Jumper cable specifications:
• Minimum cable cross-section of
25 mm2 or approx. 2 AWG
• Maximum length of 3500 mm
(11.5 ft).
Warning!
Never lean over batteries while jump
starting, you might get burned.
Battery fluid contains sulfuric acid.
Do not allow this fluid to come in
contact with eyes, skin, or clothing.
In case it does, immediately flush
affected area with water, and seek
medical help.
A battery will also produce hydrogen
gas, which is flammable and explo­
sive. Keep flames or sparks away
from battery, i.e. improper connec­
tion of jumper cables, smoking, etc..
81