Audi A4

since 1994 release

Repair and operation of the car



A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ System of an exhaust
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and channels of absorption
+ System of injection
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ System of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
- Heating and ventilation
   Check of heating and ventilation
   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





Search of malfunctions

Heating

Malfunction
Its reasons

Your help

A. Insufficient power of heating 1. The cable of heating or defect in teeth of the rotary switch of heating is torn
2. The gate of heating does not open
3. The air gate does not open

4. Slices of leaves fell in front of the heat exchanger
5. The thermostat of a radiator opens too early, cooling liquid too cold

Check and replace

Check position of the gate and lever
Check a cable of management, position of the gate and lever
Dismantle the supercharger of air, clean the heat exchanger the vacuum cleaner
Replace the thermostat

B. Heating is not switched off

See. And 1