Page 307 of 401
Troubleshooting
304 Problem Possible cause/consequence Suggested solutions
The vehicle cannot be started
using the KEYLESS GO key and
the KEYLESS GO button. The KEY-
LESS GO key is in the vehicle. A door is open. The key therefore
cannot be detected so easily. X
Close the door and try to start the vehicle again. You did not depress the brake
when starting the engine. X
Depress the brake and press the KEYLESS GO button. There is interference from a pow-
erful source of radio waves. X
Start your vehicle using the KEYLESS GO key in the ignition lock. You have lost the KEYLESS GO
key. X
Have the KEYLESS GO key cancelled at a Mercedes-Benz Service
Centre.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. Auxiliary heating*
Problem Possible cause/consequence Suggested solutions
The auxiliary heating is not work-
ing. The fuel level is down to the
reserve level. X
Refuel at the nearest filling station. The battery is not sufficiently
charged. X
Charge the battery. The auxiliary heating is faulty. X
Have the auxiliary heating checked at a qualified specialist work-
shop. Practical advice
* optional
211_AKB; 2; 5, en-GB
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Page 337 of 401
Jump-starting
334 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 Depress the parking brake.
X Manual transmission: engage neutral.
X Automatic transmission*: move the
selector lever to P.
X All vehicles: switch off all electrical con-
sumers. Saloon
1
Negative terminal on your vehicle
2 Positive terminal on your vehicle
3 Positive terminal of donor battery
4 Negative terminal of donor battery
X If your vehicle is being jump-started by
another vehicle, allow the other vehicle's
engine to idle.
X Connect positive terminal 2on your vehi-
cle to positive terminal 3of the donor
battery using the jump lead, beginning with
your own battery.
X Connect negative terminal 4of the donor
battery to negative terminal 1of your
vehicle's battery using the jump lead, con- necting the jump lead to the donor battery
first.
X Start the engine.
X When the engine is running, switch on a few
electrical consumers, e.g. the blower. Do
not switch on the lights.
X First disconnect the jump lead from nega-
tive terminals 1and 4, then from positive
terminals 2and 3each time beginning
with your vehicle's battery.
X Have the battery checked at a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre. Practical advice
* optional
211_AKB; 2; 5, en-GB
mkalafa,
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Page 338 of 401
Jump-starting
335
Estate
1
Cover
2 Rotary catches
X Turn three rotary catches 2through a
quarter turn.
X Remove cover 1forwards. 1
Earth point on your vehicle
2 Positive terminal on your vehicle (under
cover)
X If your vehicle is being jump-started by
another vehicle, allow the other vehicle's
engine to idle.
X Connect the positive terminals of the two
batteries using the jump lead, beginning
with your own battery.
X Connect the negative terminal of the donor
battery to the body earth point using the
jump lead, connecting the jump lead to the
negative terminal of the donor battery first.
X Start the engine.
X When the engine is running, switch on a few
electrical consumers, e.g. the blower. Do
not switch on the lights. X
Remove the jump lead from earth point
1 on your own vehicle and from the neg-
ative terminal of the donor vehicle first,
then from the positive terminals, beginning
with your vehicle's battery.
X Have the battery checked at a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre. Jump-starting another vehicle
You can jump-start another vehicle which has
a flat battery. Observe the following points:
R Only 12 V batteries can be jump-started.
R Do not jump-start frozen batteries. Allow
the battery to thaw first.
R Observe the requirements for the other
vehicle.
R Only use jump leads which are protected
against polarity reversal and which have a
sufficient cross-section and insulated ter-
minal clamps. G
Risk of acid burns
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 Practical advice
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4
2008-02-29T16:57:07+01:00 - Seite 335 ZDateiname: 6515_3416_02_buchblock.pdf; preflight