Climate system (since August 2004) (Audi A4 B7)

12-1 Fuses
* for models with heated rear seats;
** for models from 2006, see corresponding diagram for basic equipment;
*** the fuse was replaced from 30 A to 35 A, since 2006.

12-2 Climate control unit, ignition switch
*for models with heated rear seats

12-3 Fresh air flap actuator, central flap actuator, air distribution flap actuator

12-4 Windscreen blower flap activator, left and right temperature flap activators

12-5 Solar radiation sensor, ventilation temperature sensor, intake air temperature sensor

12-6 Climate control unit, air quality sensor, compressor control valve, refrigeration unit
* for models with air quality sensor;
*** possible section 6.0;
**** for BHF, VVK engines
***** for BNS engine, produced since 2006.
# for engines BGB, BWE, BPG, BWT, BPJ, BYK, BUL
## for BNS engine, produced since 2007.

12-7 High pressure sensor, heated windshield
* for models with heated windshield
# for models up to 2006.;
## for models from 2007.

12-8 Climate control unit and fan, solar panels, rear window heating
* for models with solar powered sunroof;
** for Station Wagon models, see the corresponding Station Wagon rear diagram

12-9 Control unit in the insert in the instrument panel
* for models with heated seats, see seat heating diagram