Air conditioning
Overview of air-conditioning systems
The vehicle is equipped with one of the following air-conditioning systems:
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2-zone Thermatic
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Thermotronic*
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Rear-compartment air conditioning*
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2-zone Thermatic is an automatic air-conditioning system combining an automatic heating and ventilation system with a cooling system.
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The Thermotronic automatic air-conditioning system combines an automatic heating and ventilation system with a cooling system. You can control the air conditioning separately for the driver's and front-passenger sides.
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The rear-compartment air conditioning allows separate temperature and airflow settings for the rear compartment.
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General notes
2-zone Thermatic/Thermotronic* controls the temperature and the humidity of the vehicle interior and filters out undesirable substances from the air.
2-zone Thermatic/Thermotronic* is only operational when the engine is running. Optimum operation is only achieved when you drive with the side windows and sliding/tilting sunroof*/panorama sliding sunroof* closed.
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Ventilate the vehicle for a brief period during warm weather, e.g. using the summer opening feature more. This will speed up the cooling process and the desired interior temperature will be reached more quickly.
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The integrated filter filters out most particles of dust and completely filters out pollen. A clogged filter reduces the amount of air supplied to the vehicle interior. For this reason, you should always observe the interval for replacing the filter, which is specified in the Service Booklet. As it depends on environmental conditions, e.g. heavy air pollution, the interval may be shorter than stated in the Service Booklet.
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 | Risk of accident |
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Observe the settings recommended on the following pages. The windows could otherwise mist up. This may obstruct your view of the traffic situation, thereby causing an accident.
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Overview of air-conditioning system functions
2-zone Thermatic
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Function
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Recommendation/Notes
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Sets the temperature, left
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Set the temperature to 22  .
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more
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 Controls the air conditioning automatically
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Activate automatic air conditioning. The indicator lamp in the button comes on.
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more
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 Activates/deactivates Thermatic
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Activate Thermatic. The indicator lamp in the button goes out.
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more
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 Mono function
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The settings made for the driver's side are adopted on the front-passenger side.
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more
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 Activates/deactivates cooling with air dehumidification
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Switch on the air conditioning with air-dehumidification function. The indicator lamp in the button comes on.
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more
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 Demists the windscreen
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Only use the "demisting" function until the windscreen is clear again.
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more
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 Activates/deactivates Thermatic
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Only use this operating mode for a short time, e.g. in a tunnel. Otherwise, the windows can mist up due to lack of fresh air.
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more
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Sets the temperature, right
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Set the temperature to 22 .
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more
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 Switches the rear window heating on/off
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At very low temperatures, the rear window heating is only switched on once the vehicle interior has warmed up.
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more
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 Increases the airflow
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more
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 Reduces the airflow
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more
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Display
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 Sets the air distribution
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more
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Thermotronic*
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Function
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Recommendation/Notes
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Sets the temperature, left
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Set the temperature to 22 .
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more
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Controls the air conditioning automatically
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Activate automatic air conditioning. The indicator lamp in the button comes on.
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more
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Activates/deactivates Thermotronic
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Activate Thermotronic. The indicator lamp in the button goes out.
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more
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Mono function
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The settings made for the driver's side are adopted on the front-passenger side.
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more
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 Switches air conditioning with air dehumidification on/off
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Switch on the air conditioning with air-dehumidification function. The indicator lamp in the button comes on.
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more
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 Switches the residual heat function on/off
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You can use the residual heat to heat or ventilate the vehicle interior after you have switched off the ignition.
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more
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Demists the windscreen
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Only use the "demisting" function until the windscreen is clear again.
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more
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Sets the temperature, right
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Set the temperature to 22 .
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more
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Switches the rear window heating on/off
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At very low temperatures, the rear window heating is only switched on once the vehicle interior has warmed up.
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more
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Adjusts the air distribution, right
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more
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Increases the airflow
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more
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Reduces the airflow
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more
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Display
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Adjusts the air distribution, left
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more
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Activates/deactivates Thermatic
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Only use this operating mode for a short time, e.g. in a tunnel. Otherwise, the windows can mist up due to lack of fresh air.
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more
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Rear-compartment air conditioning*
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|  Increases the temperature |
| Display |
| Increases the airflow |
| Reduces the airflow |
|  Reduces the temperature |
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Switching cooling with air-dehumidification on/off
The "cooling with
dehumidification" function is only available when the engine is running. The
air inside the vehicle is cooled and dehumidified according to the temperature
selected. This prevents the windows from misting up.
| Risk of accident |
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If the "cooling with air dehumidification" function is deactivated, the air inside the vehicle will not be cooled (during warm weather) or dehumidified. The windows could mist up more quickly. This may prevent you from observing the traffic conditions, thereby causing an accident.
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 | Environmental note |
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The cooling system uses the refrigerant R134A. This refrigerant does not damage the earth's ozone layer.
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Condensation may
drip from the underside of the vehicle when Thermatic is in cooling
mode.
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To switch
on: press the button.
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The indicator lamp
in the button
comes on.
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To deactivate:
press the button.
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The indicator lamp
in the button
goes out. The cooling with air dehumidification function has a delayed
switch-off feature.
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Controlling the air conditioning automatically
In automatic mode, the set temperature is maintained at a constant level fully automatically. To do so, the system automatically regulates the temperature of the dispensed air, the airflow and the air distribution.
The automatic air conditioning will achieve optimal operation if "cooling with air dehumidification" is also activated. If necessary, cooling with air dehumidification can be deactivated.
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Make sure that the key is in position 2 in the ignition lock.
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Set the desired temperature.
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To activate: press the button.
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The indicator lamp in the button comes on. The automatic airflow and air distribution is activated.
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To deactivate: press the button.
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The indicator lamp in the button goes out. Automatic air distribution and airflow are deactivated.
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Setting the temperature
2-zone Thermatic: the temperature for the driver's and front-passenger side can be set individually.
Air-conditioning zones for Thermotronic*
Thermotronic*: the temperature for each of the three air-conditioning zones can be set individually. You can select different airflow settings for the driver's and front-passenger sides as well as for the rear compartment.
Setting the temperature in the front compartment using 2-zone Thermatic/Thermotronic*
Setting the rear-compartment temperature via the rear-compartment air conditioning*
Adjusting the air vents
| Risk of injury |
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Very hot or very cold air can flow from the air vents. This could cause burns or frostbite to bare skin in the immediate vicinity of the vents. Keep bare skin away from these air outlets. If necessary, direct the airflow away to a different area of the vehicle interior.
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Please observe the following notes to ensure that the air can flow freely through the air vents:
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Keep the air inlet between the windscreen and the bonnet free of deposits, such as ice and snow, to guarantee the supply of fresh air into the vehicle interior.
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Never cover the vents or air inlet and outlet grilles in the vehicle interior.
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Position the sliders for the centre air vents in the central position to provide virtually draught-free ventilation.
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Setting the centre air vents
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| Centre air vent, left |
| Centre air vent, right |
| Thumbwheel for centre air vent, right |
| Thumbwheel for centre air vent, left |
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Centre air vents
Adjusting the side air vents
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| Side window demister vent |
| Side air vent |
| Side air vent thumbwheel |
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Side air vents
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To open/close: turn thumbwheel up or down.
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Setting the glove compartment air vent
The glove compartment can be ventilated, for instance to cool its contents, when 2-zone Thermatic/Thermotronic* is activated. The level of airflow depends on the airflow and air distribution settings. The temperature of the air is approximately the same as that of the air flowing from the centre air vents.
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Close the glove compartment air vent when heating mode is activated and activate "cooling with air dehumidification" if the outside temperature is high. Otherwise, temperature-sensitive items stored in the glove compartment could be damaged.
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| Air vent thumbwheel |
| Air vent |
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Glove compartment air vent
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To open/close: turn thumbwheel clockwise or anti-clockwise.
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Setting the rear-compartment air vents
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| Thumbwheel for rear-compartment air vents |
| Rear-compartment air vent, right |
| Control panel for rear-compartment air conditioning* |
| Rear-compartment air vent, left |
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Rear-compartment air conditioning
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To open/close: turn thumbwheel up or down.
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Original Element p durch Gültigkeiten gefiltert!
Setting the air distribution
You can set the air
distribution individually for the driver's and front-passenger sides
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The symbols for the air
distribution have the following meanings:
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Symbol
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Meaning
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Directs the airflow
through the demister vents
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Directs the airflow
through the centre and side air vents
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Directs the airflow
through the footwell vents
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Directs the airflow
through the centre, side and footwell air vents
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Directs the airflow
to the entire vehicle interior
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Directs the airflow
through the demister, the centre and the side air vents
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Directs the airflow
through the demister and footwell
vents
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Make sure that the
key is in position 2 in the ignition lock.
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Press the
button
repeatedly until the desired setting appears in the display.
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The indicator lamp
in the button
goes out. The automatic control is deactivated and the air distribution is
controlled according to the selected setting.
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Switching the Mono function on/off
You can use the mono function to adopt the temperature and air distribution settings on the driver's side for the front-passenger side.
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Press the button.
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The indicator lamp in the switch lights up or goes out.
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Demisting the windscreen
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You should only select the "demisting" function until the windscreen is clear again.
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Make sure that the key is in position 2 in the ignition lock.
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To activate: press the button.
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The indicator lamp in the button comes on.
The system automatically switches to the following functions:
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cooling with air dehumidification on
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high airflow
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high temperature
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air distribution to the windscreen and front side windows
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air-recirculation mode off
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Demisting the windows
Windows misted
up on the inside
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Activate the "cooling function with air-dehumidification"
function.
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Activate the automatic mode.
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If the windows
continue to mist up, activate the "demisting"
function.
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Windows misted
up on the outside
Switching the rear window heating on/off
| Risk of accident |
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Clear all windows of ice or snow before setting off. Impaired visibility could otherwise endanger you and others.
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At very low
temperatures, the rear window heating is only switched on once the vehicle
interior has warmed up.
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The rear window
heating has a high current draw. Therefore, switch it off as soon as the rear
window is free of snow and ice, as it only switches off automatically after
approximately fifteen to thirty minutes.
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If the battery
voltage is too low, the rear window heating may switch off.
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Make sure that the
key is in position 2 in the ignition lock.
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Press the
button.
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The indicator lamp
in the button
lights up or goes out.
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Activating/deactivating air-recirculation mode
You can deactivate
the flow of fresh air if unpleasant odours are entering the vehicle from
outside. The air already inside the vehicle will then be recirculated.
| Risk of accident |
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Only switch over to air-recirculation mode briefly at low outside temperatures. Otherwise, the windows could mist up, thus impairing visibility and endangering yourself and others. This may prevent you from observing the traffic conditions, thereby causing an accident.
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Make sure that the
key is in position 2 in the ignition lock.
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To
activate: press the button.
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The indicator lamp
in the button
comes on.
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Air-recirculation mode is activated automatically at high outside
temperatures. When air-recirculation mode is activated automatically, the
indicator lamp in the button is not lit.
Outside air is
added after about 30 minutes.
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To deactivate:
press the button.
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The indicator lamp
in the button
goes out.
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Air-recirculation mode
switches off automatically:
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after approximately
five minutes at outside temperatures below approximately 5
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after approximately
five minutes if the air dehumidification is deactivated
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after approximately
30 minutes at outside temperatures above approximately 5
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Air-recirculation mode with the
convenience opening/closing feature
| Risk of injury |
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Make sure that nobody can become trapped between the side window and the door frame as the side windows are opened and closed. Do not place objects or lean against the side window when it is being opened or closed. You or the objects could be drawn in or become trapped between the side window and the door frame as the window moves. If there is a risk of entrapment, press the button again. If necessary, press the switch that stops, opens or closes the side window in the opposite direction.
Make sure that nobody can become trapped when you open or close the sliding/tilting sunroof*/panorama sliding sunroof*. If there is a risk of entrapment, press the button again. If necessary, press the switch that stops, opens or closes the sliding/tilting sunroof*/panorama sliding sunroof* in the opposite direction.
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Convenience
closing: press and hold the
button until
the side windows and the sliding/tilting sunroof*/panorama sliding sunroof* have closed.
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The indicator lamp
in the button
comes on. Air-recirculation mode is activated.
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Convenience
opening: press and hold the
button until
the side windows and the sliding/tilting sunroof*/panorama sliding sunroof* have reached their original
position.
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The indicator lamp
in the button
goes out. Air-recirculation mode is
deactivated.
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If you open the
side windows or the sliding/tilting sunroof* or panorama sliding sunroof* manually after closing using the
convenience closing feature, it will remain in this position when opened using
the convenience opening feature.
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Switching the residual heat on and off
The "residual heat
function" function is only available with Thermotronic*.
It is possible to make use of the residual heat of the engine to
continue heating the stationary vehicle for up to 30 minutes after the
engine has been switched off. The heating time depends on the set interior
temperature.
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The blower will run
at a low speed regardless of the airflow setting.
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If you activate the
"residual heat" function at high temperatures, only the ventilation will be
activated. The blower runs at medium speed.
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Make sure that the
key is in position 0 in the ignition lock or that it has been
removed.
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To
activate: press the button.
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The indicator lamp
in the button
lights up.
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To deactivate:
press the button.
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The indicator lamp
in the button
goes out.
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The residual heat
automatically switches off after around 30 minutes or if:
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button.