Air conditioning system
113
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Note
•
If the auxiliary heating runs, the fuel
consumption comes from
the vehicle tank.
Therefore the auxiliary heating should not be operated, if there is very little fuel in the tank.•
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 and ventilation is
running, the vehicle battery discharges.
If the auxiliary heating and ventilation
has been operated several times over a
longer period, the vehicle must be driven
a few kilometers in order to recharge the
vehicle battery.•
The auxiliary heating only sw
itches the blower on, if
it has achieved a coolant
temperature of approx. 50 °C.•
At low outside temperatures, this can resu
lt in a formation of water vapour in
the area of the engine compartment.This
is quite normal and is not an operating
problem.•
After switching off the auxiliary heating, the coolant pump runs for a short
period.•
The auxiliary heating and ventilation does not switch on or comes on, if the
vehicle battery indicate
s a low loading state.
•
The auxiliary heating (auxiliary heating) does not switch on, if the following was
shown in the information display or before switching off the ignition:
Please refuel!
(Please refuel!)
.
•
The air inlet in front of the windscreen must be free of ice, snow or leaves in
order to ensure that the auxiliary heating operates properly.•
So that warm air can flow into the vehi
cle interior after switching on the auxil-
iary heating, you must maintain the te
mperature normally selected by you (we
recommend 22°C). It is recommended to
put the air flow
in the position
.
•
On vehicles with DPF (diesel particle filter) the warm coolant heats up the
engine.
Direct switching on/offThe auxiliary heating (auxiliary heating and ve
ntilation) can be switched on or off at
any time
directly
using the button on the op
erating part of the Climatic
⇒ fig. 129
or on the operating part of the Climatronic.
If the auxiliary heating and ventilation is not switched off earlier, it switches off automatically after the expiration of
the set operating period, in the menu
Running
time
.
Fig. 129 Button for direct switching on/off of the auxil-iary heating (auxiliary heating and ventilation) on the operating part of the Climatic
s2dk.1.book Page 113 Wednesday, April 8, 2009 12:23 PM
Fuses and light bulbs
259
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Fuse assignment in engine compartment - version 2Certain electrical components are only standard on certain vehicle model versions or only suppliable as optional equipment for certain models.No.
Power consumer
Amperes
F1
Not assigned
F2
Control unit for automatic gearbox DQ200
30
F3
Measuring circuit
5
F4
Va lve s for AB S
30/20
F5
Control unit for automatic gearbox DQ250
15
F6
Instrument cluster, windshield
wiper lever and turn sig-
nal light lever
5
F7
Power supply for terminal 15 (ignition on)
40
F8
Radio
15
F9
Phone
5
F10
Engine control unit, Main relay
5/10
Fig. 231 Schematic repre- sentation of fuse box in engine compartment - version 2
F11
Control unit for auxiliary heating
20
F12
Control unit for CAN databus
5
F13
Engine control unit
15/20/30
F14
Ignition
20
F15
Lambda probe (petrol engine) Glow plug system relay and
fuel pump (diesel engine)
10 5
F16
Front right main headlight, right rear light unit
30
F17
Horn
15
F18
Audio amplifier (sound system)
30
F19
Front window wiper
30
F20
Valve for fuel dosing water pump
2010
F21
Lambda probe
10/15
F22
Not assigned
F23
Relay ValvesHigh pressure pump
51015
F24
Fa n
10
F25
Pump for ABS
30/40
F26
Left main headlight
30
F27
Control unit for glow plug system
50
F28
Windscreen heater
50
F29
Accessory equipment
50
F30
Power supply relay - terminal X
a)
50
a)In order not to drain the battery unnecessarily
when starting the engine, the electrical com-
ponents of this terminal are automatically switched off.No.
Power consumer
Amperes
s2dk.1.book Page 259 Wednesday, April 8, 2009 12:23 PM
