2008 Audi A6 / S6 — Owner's Manual
We recommend that you always keep automatic air recirculation ON to prevent polluted outside air from entering the vehicle interior. If the air quality sensor located in the air conditioning system detects polluted outside air, the sensor decides whether the air pollution can be reduced by the factory -installed pollutant filter or whether it is necessary to switch to air recirculation. With heavy concentrations of pollutants, the air conditioning system is switched automatically to recirculation mode and the supply of outside air is blocked. As soon as the concentration of pollutants in the outside air drops, fresh air is supp lied to the vehic le inte rior aga in.
With synchronization active, the driver 's or the passenger's settings are adopted for the other seats. This includes all the climate control settings right down to the heated seats. If a different setting is selected at a "synchronized seat", synchronization is canceled. The air flow coming from the center vents can be adjusted to be colder or warmer than the selected set temperature.
In this way, you have the opportunity to have the air flow from the center vents a little warmer or cooler, depending on the time of year. A little cooler in the summer and a little warmer in the winter. There must be at least 10 inches (25 cm) between your chest and the center of the steering wheel. If you cannot sit more than 10 inches (25 cm) from the steering wheel, see if the adaptive equipment is available to help you reach the pedals and increase the distance from the steering wheel.