WARNING
The auxiliary heating (auxiliary heating and ventilation) (hereinafter refer-
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red to as aux. 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
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of fire.
The exhaust pipe of the auxiliary heating is located on the underside of
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the vehicle. If you want to use the heater, do not switch off the car in pla-
ces where the exhaust fumes can come into contact with flammable mate-
rials such as dry grass, undergrowth, leaves, spilled fuel etc. -. risk of fire.
CAUTION
The exhaust pipe of the auxiliary heating, which is located on the underside
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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-
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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
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leaves) to ensure that the auxiliary heating operates properly.
Note
The auxiliary heating only switches the blower on, if it has achieved a coolant
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temperature of approx. 50 °C.
At low outside temperatures, this can result in a formation of water vapour in
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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.
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heating, you must maintain the comfort temperature normally selected by you,
leave the fan switched on and leave the air outlet vents in open. It is recom-
mended to put the air flow in the position or .
110
Using the system
Switching on and off directly
Fig. 127 Button for switching on/off the system directly on the operating
part of the air conditioning/Climatronic
Read and observe
and
The aux. heating can be directly switched on or off at any time using the sym-
bol key
» Fig. 127
on the operating part of the air-conditioning system, or the
Climatronic or via the radio remote control
If the auxiliary heating has not already been switched off, it switches off auto-
matically after the running time set in the Running time menu.
After switching off the auxiliary heating, the coolant pump still runs for a short
period.
System settings
Read and observe
and
The following menu items can be selected from the Aux. heating menu item in
the MAXI DOT display (depending on the vehicle equipment).
Day of the wk. - set the current day of the week
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Running time - Set the required running time in 5 minute increments. The run-
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ning time can be 10 to 60 minutes.
Mode - Set the desired heating/ventilation mode
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Starting time 1, Starting time 2, Starting time 3 - for each pre-set time, the day and
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the time (hour and minute) can be set for switching on the auxiliary heating.
An empty position can be found between Sunday and Monday when select-
ing the day. If this empty position is selected, the activation is performed
without taking into account the day.
Activate - Activate pre-set mode
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on page 110 first.
» page
111.
on page 110 first.