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
   The minus is connected to weight
   The help for orientation in the electrotechnical equipment of the car
   Wires
   Connections of wires
   Central switching knot
   Support of additional relays
   Box for electronics
   Relay and control units
   Switching relay
   H-contact of the relay of unloading
   Table of the relay and control units
   Safety locks
   Table of safety locks
   + Electric circuits
   + Accumulator
   - Generator
      Generator of an alternating current
      Control bulb of a charging
      Tension regulator
      The self-help in work with the generator and a tension regulator
      Movement with the defective generator
      Maple and poliklinovy belt
      Check of a condition of a maple and poliklinovy belt
      Replacement of a maple and poliklinovy belt
      Torn maple a belt
      Review: maple and poliklinovy belt
      The help at malfunctions
   + Starter
+ ignition System
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics










Maple and poliklinovy belt

  • At the six-cylinder engine all auxiliary units work from a wide driving belt – a poliklinovy belt. Thanks to an automatic tension roller this belt should sustain run in 120 000 km before preventive replacement will be made.
  • At the four-cylinder engine too there is such poliklinovy a belt with an automatic tension for the generator, сервонасоса and the vyazkostny fan. But in this case there are also other belts:
  • Traditional maple a belt without adjustment possibility for the water pump.
  • Short poliklinovy a belt with rigid adjustment of a tension for the compressor of climatic installation.