Audi A5/S5   Controls   Heating and cooling  Air conditioner
The basic settings for the air conditioner can be adjusted via the sound system or MMI*.
Select: Function selector button CAR > control button AC. Or:
Select: Function selector button CAR > control button Car systems* > AC.
Automatic air recirculation*
Air recirculation is controlled automatically when this function is activated. If the windows mist up, press the FRONT button.
Synchronisation*
When synchronisation is activated, all the driver's settings (with the exception of seat heating/ventilation*) are applied to the front passenger's seat. The synchronisation is deactivated as soon as any adjustments are made on the front passenger's side.
The settings can also be synchronised by pressing and holding the rotary control on the driver's side.
Supplementary heater*
The interior of a diesel vehicle warms up more quickly when the supplementary heater is switched on.
For the sake of the environment
The automatic air conditioner runs in a particularly economical mode when the efficiency* setting is selected (Link).

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