Jump-starting
267
G
Risk of injury
There is a risk of acid burns when jump-
starting a vehicle due to the gases which
escape from the battery. Do not lean over
the battery while the engine is being jump-
started.
G
Risk of explosion
Gases escaping from the battery during
jump-starting may cause minor explosions.
Avoid creating sparks. Keep naked flames
away from the battery, and do not smoke.
Comply with safety precautions and take
protective measures when handling batter-
ies. You will find these under "Battery" in
the index.
X
Make sure that the two vehicles do not
touch.
X
Apply the parking brake.
X
Manual transmission: engage neutral.
X
AUTOTRONIC*: move the DIRECT SELECT
selector lever to P.
X
Switch off all electrical consumers.
X
Open the bonnet (
Y
page 171).
1
Positive terminal of donor battery
2
Positive terminal on your vehicle
3
Negative terminal of donor battery
4
Negative terminal on your vehicle
X
Open the battery cover (
Y
page 264).
X
Connect positive terminal
2
on your vehi-
cle to positive terminal
1
of the donor bat-
tery using the jump lead, beginning with
your own battery.
X
Start the engine of the donor vehicle and
run it at idling speed.
X
Connect negative terminal
3
of the donor
battery to negative terminal
4
of your
vehicle's battery using the jump lead, con-
necting the jump lead to the donor battery
first.
X
Start the engine.
X
Electrical consumers can be switched on
again. Do not, however, switch on the lights
as this places too heavy a load on the bat-
tery.
X
Remove the jump lead from earth
point
4
and negative terminal
3
first,
then from positive terminals
1
and
2
,
each time disconnecting from the battery
on your own vehicle first.
X
Have the battery checked at a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre.
Practical advice
* optional
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