Audi A4   Controls   Heating and cooling  Air conditioner
Air conditioner: Controls
Fig. 1 Air conditioner: Controls
Deluxe automatic air conditioner (3-zone*): Controls
Fig. 2 Deluxe automatic air conditioner (3-zone*): Controls
We recommend pressing the AUTO button and setting the temperature to 22 °C (72 °F).
The functions can be switched on and off by pressing the buttons. The rotary controls are used to adjust the temperature, blower speed and air distribution. The LED in the corresponding button lights up when the function is switched on. The settings will appear on the infotainment display for several seconds.
On the 3-zone deluxe automatic air conditioner*, separate temperatures can be selected for the driver's and front passenger's sides. The settings will also be shown on the air conditioner display.
OFF Switching the air conditioner on/off
The OFF button is used to switch the air conditioner on and off. The air conditioner will also switch on if you press the rotary control. When the air conditioner is switched off, the supply of air from outside the car is cut off.
A/C Switching air cooling on/off
When the air cooling is switched off, the air is neither cooled nor dehumidified. The windows may mist up as a result. The air cooling is switched off automatically at low outside temperatures (below zero).
Switching air recirculation on/off
In air recirculation mode, the air from the interior of the vehicle is filtered and recirculated. This setting prevents fumes etc. from entering the interior. We recommend switching on the air recirculation mode when driving through a tunnel or in traffic queues WARNING!.
The air recirculation mode is switched off when the AUTO or FRONT button is pressed.
AUTO Switching automatic mode on
The automatic mode maintains a constant temperature inside the vehicle. Air temperature, output and distribution are regulated automatically.
Selecting the temperature
The temperature can be adjusted between +16 °C (+60 °F) and +28 °C (+84 °F). Outside this range, LO or HI will appear on the air conditioner display. In the two extreme settings the air conditioner operates continuously with maximum cooling or heating output, and the temperature is not regulated automatically.
Adjusting the blower speed
You can adjust the blower speed manually. Press the AUTO button for automatic control of the blower speed.
Adjusting the air distribution
You can direct the flow of air manually to selected outlets. Press the AUTO button for automatic air distribution.
Adjusting the seat heating*
When you press the button, the seat heating is switched on at level 3 (the highest level). The LEDs indicate the temperature level. To reduce the temperature, press the button again. To switch off the seat heating, press the button repeatedly until all the LEDs have gone out.
The seat heating automatically switches from level 3 to level 2 after 10 minutes.
Adjusting the seat ventilation*
When you press the button, the seat ventilation is switched on at level 3 (the highest level). The LEDs indicate the ventilation level. To reduce the ventilation, press the button again. To switch off the seat ventilation, press the button repeatedly until all the LEDs have gone out.
FRONT Switching the defroster on/off
The windscreen and side windows are defrosted or demisted as quickly as possible. The air output is increased to maximum and most of the air comes out of the outlets below the windscreen. The air recirculation mode is deactivated. The temperature should be set to 22 °C or higher. The temperature is regulated automatically.
The defroster is switched off when the AUTO button is pressed.
REAR Switching the rear window heating on/off
The rear window heating operates only when the engine is running and switches off automatically after a few minutes, depending on the outside temperature.
To switch on the rear window heating permanently, press and hold the REAR button for at least two seconds. It will then remain on until the ignition is switched off.
Air outlets
The thumbwheels can be used to open and close the air outlets in the centre and on either side of the dashboard. The lever in the centre of the outlets can be used to adjust the direction of air flow.
To increase or reduce the air temperature in the rear cabin on vehicles with 3-zone deluxe automatic air conditioner*, turn the right thumbwheel towards the red or blue marking.
WARNING!
  • For reasons of safety you should not leave the air recirculation switched on for too long. This mode prevents fresh air from entering the vehicle, so the windows can mist over if the air cooling is switched off. Bad visibility can cause an accident.
  • People with limited capacity to feel pain or sense temperature could burn themselves when using the seat heating. These people must not use the seat heating - risk of injury!
Caution!
To avoid damaging the heating elements of the seat heating, please do not kneel on the seat or apply sharp pressure at a single point.

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