WARNING■The auxiliary heating must never be operated in closed rooms (e.g. garag-
es) – risk of poisoning!■
The auxiliary heating must not be allowed to run during refuelling – risk
of fire.
■
The exhaust pipe of the auxiliary heating is located on the underside of
the vehicle. If you want to use the heater, then the car should not be
parked in places where the exhaust gases can come into contact with flam- mable materials such as dry grass, undergrowth, leaves, spilled fuel or simi-
lar - Risk of fire.
CAUTION
■ The running auxiliary heater consumes fuel from the vehicle tank and auto-
matically controls the filling level. If only a low quantity of fuel is present in the
fuel tank, the auxiliary heating switches off.■
The exhaust pipe of the auxiliary heating, which is located on the underside
of the vehicle, must not be clogged and the exhaust flow must not be blocked.
■
If the auxiliary heating is running, the vehicle battery discharges. If the auxili-
ary heating and ventilation has been operated several times over a longer peri-
od, the vehicle must be driven a few kilometres in order to recharge the vehi-
cle battery.
■
The air inlet in front of the windscreen must be free (e.g. of ice, snow or
leaves) to ensure that the auxiliary heating operates properly.
Note
■ The auxiliary heating switches on the blower B » Fig. 125 on page 112
or » Fig. 126 on page 115 only if it has achieved a coolant temperature of ap-
prox. 50 °C.■
At low outside temperatures, this can result in a formation of water vapour in
the area of the engine compartment. This is quite normal and is not an operat-
ing problem.
■
So that warm air can flow into the vehicle interior after switching on the aux-
iliary heating, you must maintain the comfort temperature normally selected
by you, leave the fan switched on and leave the air outlet vents in an open po-
sition. It is recommended to put the air flow in the position
or
.
Switching on/offFig. 127
Button for switching on/off the system directly on the operating
part of the air conditioning/Climatronic
Read and observe
and on page 119 first.
The auxiliary heating can be switched on/off as follows.
Manually switching on using the button on the operating part of the manual air conditioning/Cli-
matronic. The warning light in the button illuminates » Fig. 127.
by using the radio remote control » page 120.
Manually switching off using the button on the operating part of the manual air conditioning/Cli-
matronic. The warning light in the button goes out » Fig. 127,
by using the radio remote control » page 120.
After switching off the auxiliary heating, the coolant pump still runs for a short period.
Automatic switching on/off
The following menu items can be selected from the Aux. heating menu item in
the information display » page 47 (depending on the vehicle equipment):
■ Day of the week - set the current day of the week;
■ Running time - Set the required running time in 5 minute increments. The
running time can be 10 to 60 minutes.
■ Mode - Set the desired heating/ventilation mode;
119Air conditioning system
Fuses in the engine compartmentFig. 200
Cover for the fuse box in the en-
gine compartment
Read and observe and on page 220 first.
On some vehicles, the battery cover must be removed before removing the
cover for the fuse box » page 195.
Replacing fuses
›
Move the safety catch of the cover of the fuse box
A
» Fig. 200 in the direc-
tion of the arrow.
The symbol is displayed behind the catches. .
›
Remove the cover.
›
Replace the appropriate fuse.
›
Place the cover on top of the fuse box.
›
Turn the securing bracket
A
in opposite direction of the arrow.
The symbol is displayed behind the catches .
The cover is locked into position.
CAUTION
The cover for the fuse box in the engine compartment must always be applied
correctly. Water may get into the fuse box if the cover is not replaced properly
- there is a risk of damage to the vehicle!Assignment of fuses in the engine compartmentFig. 201
Fuses: Type A / Type B
Read and observe
and on page 220 first.
Fuse assignment in the engine compartment - version A
No.Consumer1Front right main headlight, right tail light2Valves for ABS3-4Not assigned5Horn6-12Not assigned13Control unit for automatic gearbox14Not assigned15Coolant pump16Not assigned17Instrument cluster, windscreen wiper lever, and turn signal lever18Audio amplifier (sound system)19Radio20 - 22Not assigned23Engine control unit24Data bus control unit25 - 26Not assigned27Fuel dosage valve28Engine control unit 222Do-it-yourself
