Audi A4

since 1994 of release

Repair and car operation

A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ exhaust System
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and absorption channels
+ injection System
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ ignition System
+ Lighting
+ Alarm equipment
+ Tools and devices
- Heating and ventilation
   Heating and ventilation check
   Supercharger of air
   Replacement of the dustproof filter
   Module of manual control by heating/ventilation
   Search of malfunctions
   Climatic installation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics

Heating and ventilation check


  1. Rotary regulator of supply of air and the supercharger at the left slowly turn from left to right: supply of air is open, the supercharger raises the speed on four steps.
  2. Rotary regulator in the middle for installation of capacity of heating turn to the right: the capacity of heating increases. Supply of air is carried out via the heat exchanger.
  3. Turn a regulator to the left: the capacity of heating decreases. The stream of air bypasses the heat exchanger.
  4. Rotary regulator on the right, serving for distribution of a stream of air, serially put under symbols on a scale: the lever shifted from left to right, causes supply of air: а) from snuffled in the middle of a control panel, in) from snuffled in feet or c) from snuffled a heater under a windscreen.
  5. In the provision of a regulator in) and c) certain amount of air arrives in addition from averages snuffled, if they are not closed by rollers with a nakatka.