Heating and air conditioning system 137
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
•The exhaust pipe of the auxiliary heating is located on the
underside of the vehicle. Therefore do not place the vehicle, if you
wish to operate the auxiliary heating, in such a way that the exhaust
gases of the auxiliary heating can come easily into contact with
inflammable materials (e.g. dry grass) or easily inflammable
substances (e.g. fuel run out).
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 kilom-
eters in order to recharge the vehicle battery.
•The auxiliary heating only switches the blower on, if it has achieved a
coolant temperature of approx. 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 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 indicates a low loading state.
•The auxiliary heating (auxiliary heating) switches on, if in the informa-
tion display: Please refuel! is indicated or was indicated before switching
off the ignition.
•When driving, the auxiliary heating can only be switched on, if the exte-
rior temperature is lower than 5 °C.
•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 the warm air can flow into the vehicle interior after switching on
the auxiliary heating (auxiliary heating), the control dial ⇒page 119,
fig. 116 must be turned up to the stop to the right when heating. With
Climatic and Climatronic, you can maintain the temperature normally
selected by you (we recommend 22 °C). It is recommended to put the air
flow in the position
. For heating and climatic put the blower switch
⇒ page 119, fig. 116 if necessary ⇒page 124, fig. 119 in the position 2.
WARNING (continued)
AA
AB
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Fuses and light bulbs
290
Caution
•When unlocking and locking the fuse cover, it must be pressed on the
sides to the box, otherwise damage can occur to the locking mechanism.
•Carefully position the fuse cover in the engine compartment. If the
cover was not correctly positioned, water can get into the fuses and this
results in a damage to the vehicle!
Fuse assignment in engine compartment - version 1
Certain electrical components are only standard on certain vehicle model
versions or only suppliable as optional equipment for certain models.
Fig. 219 Schematic
representation of fuse
box in engine compart-
ment - version 1
No.Power consumerAmperes
F1Pump for ABS30
F2Valves for ABS30
F3Control unit for convenience functions20
F4Measuring circuit5
F5Horn15
F6Valve for fuel dosing15
F7Not assigned
F8Not assigned
F9Activated charcoal filter, exhaust gas recirculation
valve10
F10Leakage diagnosis pump10
F11Lambda probe upstream of catalytic converter,
engine control unit10
F12Lambda probe downstream of catalytic converter10
F13Control unit for automatic gearbox15
F14Not assigned
F15Coolant pump10
F16Windshield wiper lever and turn signal light lever5
F17Instrument cluster5
F18Audio amplifier (sound system)30
F19Radio15
F20Phone5
F21Not assigned
F22Not assigned
s24s.book Page 290 Thursday, November 24, 2005 12:27 PM
