Audi A4

Since 1994 of release

Repair and car operation

Audi А4
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ Exhaust system
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and channels всасывания
+ Injection system
+ Coupling
+ Transmission and the main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tyres
+ The electrotechnical equipment
+ Ignition system
+ Illumination
+ The alarm equipment
+ Tools and devices
- Heating and ventilation
   Heating and ventilation check
   Supercharger of air
   Replacement of the dustproof filter
   The module of a hand control heating/ventilation
   Search of malfunctions
   Climatic installation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics

Supercharger of air

Arrangement of a supercharger

1 – the case of a supercharger;
2 – the engine of a supercharger;

3 – a fan wheel.
In a photo the arrangement of a supercharger in the car with climatic installation is shown.

When the box for gloves the engine of a supercharger with a wheel of the fan (2) is accessible is dismantled. It is inserted into an air line (1) from below.

Here additional resistance of a supercharger (2 – near to a thermosafety lock) are taken out from an assembly aperture in a box (1) superchargers. By arrows lock springs from plastic are shown.

The engine of a supercharger of air works on four speeds which are established by the rotary switch Giving of air and a supercharger on a control panel. Various steps of speed are reached at the expense of connection of resistance of different size (or their consecutive connection). Resistance are connected to a wire of weight of the engine of a supercharger. Giving плюсового a current (through a safety lock) remains to a constant – only contact to weight "improves or"worsens".

Search of malfunctions in the engine of a supercharger of air


  1. If the supercharger of air does not work in one of switch positions check up in the beginning a corresponding safety lock (the table in the head the Electrotechnical equipment).
  2. If, despite the serviceable switch, screen wipers, the reason in the relay of unloading of H-contact do not work also.
  3. Check of the engine of a supercharger: completely dismantle a box for gloves (the head Salon).
  4. Disconnect a bipolar socket in a wire to the engine of a supercharger, connect two auxiliary wires to free now to engine contacts: from accumulator plus to contact to which, and from an accumulator minus the red wire has been connected to contact to which the brown wire has been connected.
  5. If the engine of a supercharger is perfectly in order, now it should rotate on full speed. If is not present, replace it.
  6. If the drive works not on all speeds, that, probably, defect in one of resistance.
  7. Dismantle additional resistance, carry out the visual control. If one of resistance has fused, replace all support with resistance.
  8. If additional resistance are perfectly in order, along with conductivity infringement in a wire, as a malfunction source still there can be a rotary regulator in a control panel – replace all control mean with heating.

Dismantle of the engine of a supercharger of air


  1. Completely dismantle a box for gloves (the head Salon).
  2. The engine of a supercharger is inserted into an air line to heating from below.
  3. Disconnect a socket токоподводящего wires of the engine of a supercharger and take out a wire from an arm.
  4. Lift a lock ledge at the left on the case over a clamp and take out the case of a supercharger of air, having turned it to the left (counter-clockwise).

Dismantle of additional resistance of a supercharger of air


  1. Dismantle a box for gloves (the head Salon).
  2. Wring out upwards two plastic lock springs below on a fixing payment of additional resistance.
  3. Raise a fixing payment and take out it downwards. If it is necessary, ослабьте glutinous connection.
  4. At installation pay attention that the basic payment of resistance is completely densely established in an air line. If it is necessary, condense with its hermetic.