Heating and air conditioning system 119
The auxiliary heating (auxiliary heating) warms up the coolant during the combus-
tion of fuel from the vehicle tank. The coolant warms up the air, which (if the blower
speed is not set to zero) flows into the occupant compartment.
WARNING
•
“Stale air” may result in fatigue in the driver and occupants, reduce
attention levels and also cause the windows to mist up. The risk of having an
accident increases.
Auxiliary ventilation
The auxiliary ventilation enables fresh air to flow into the vehicle interior by
switching off the engine, whereby the interior temperature is effectively decreased
(e.g. with the vehicle parked in the sun).
•
•
Do not switch the Climatronic system off for longer than necessary.
Switch the Climatronic system on as soon as the windows mist up.
Defrosting windscreen
WARNING
•
The auxiliary heating must never be operated in closed rooms - risk of
poisoning!
Defrosting windscreen - switching on
–
Press the button
⇒ page 116, fig. 141.
•
•
The auxiliary heating must not be running during refueling - risk of fire.
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).
Defrosting windscreen - switching off
AUTO
–
Once again press the button
or the button
.
The temperature control is controlled automatically. More air flows out of the air
outlet vents 1.
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.
Auxiliary heating (auxiliary heating and ventilation)*
Description and important information
•
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.
The auxiliary heating (auxiliary heating and ventilation) heats or
supplies the interior of the vehicle with fresh air independent of the
engine.
•
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.
Auxiliary heating (auxiliary heating)
The auxiliary heating (auxiliary heating) functions in connection with the Climatic or
Climatronic.
•
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
It can be used when stationary, when engine is switched off for preheating of the
vehicle as well as while driving (only during the heating phase of the engine).
•
the area of the engine compartment. This is quite normal and is not an operating
problem.
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
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