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
   The minus is connected to weight
   The help for orientation in the electrotechnical equipment of the car
   Connections of wires
   The central switching knot
   Support of additional relays
   Box for electronics
   The relay and management blocks
   The switching relay
   H-contact of the relay of unloading
   The table of the relay and management blocks
   Safety locks
   The table of safety locks
   + Electric schemes
   + The accumulator
   - The generator
      The alternating current generator
      Control bulb of gymnastics
      Pressure regulator
      The self-help in work with the generator and a pressure regulator
      Movement with the defective generator
      Клиновой and поликлиновой a belt
      Condition check клинового and поликлинового a belt
      Replacement клинового and поликлинового a belt
      Torn клиновой a belt
      The review: клиновой and поликлиновой a belt
      The help at malfunctions
   + Starter
+ Ignition system
+ Illumination
+ The alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics

Condition check клинового and поликлинового a belt

In a photo the tension device поликлинового a belt for the generator, сервонасоса and вязкостного the fan is shown:

1 – a ledge for installation рожкового a key;
2 and 3 – apertures for fixation of the tension device in the unloaded condition.

When apertures coincide, the corresponding pin is inserted into them.

Fixation of the tension device поликлинового a belt for the generator, сервонасоса and вязкостного the fan: the spring rotary lever (2) leans back to the right рожковым a key (in an arrow direction) until it will be impossible to insert a pin (1) into both coinciding apertures.

To pull клиноребристый a belt of the compressor of climatic installation, it is necessary to weaken fixing bolts (1 and 3) on the console of a tension roller (4). Then establish динамометрический a key (2) on шестигранник consoles of a tension roller and tighten on 25 nanometers in an arrow direction. Wrap fixing bolts.

Audi any more does not provide this point of maintenance service, but nevertheless we believe that preventive check in any case is useful:

  • For belt check completely turn some times the engine.
  • Only so you can really examine all surfaces of belts. Often belts have only an one and only crack which at check can appear lying precisely on a belt pulley.
  • Urgently replace the torn or uncombed belts.

Tension check клинового and клиноребристого a belt

The tension theme клинового a belt in Audi is substantially obsolete, since:


  1. The device of an automatic tension big поликлинового a belt in four- and six-cylinder engines constantly provides its correct tension, therefore a maximum that it is possible to make, it to subject to check working capacity of the device of a tension of a belt.
  2. By strong pressing by a finger the tense belt it should, resisting, to cave in, and the tension roller should turn away aside. When the belt is released, the roller leans back back and pulls a belt. If the belt freely hangs between belt pulleys the tension roller is faulty (or have forgotten to take out a blocking pin from the tension device).
  3. To klinovomu belt of the water pump in the four-cylinder engine rigid installation which cannot vary is set. If a belt will pull poorly and thereof проскальзывание a belt on a belt pulley it is too great клиновой it is necessary to replace a belt.
  4. Ideal tension: at strong pressing by a thumb the belt between both belt pulleys should cave in approximately on 5 mm.
  5. Short поликлиновой the belt which is a drive of the compressor of climatic installation at the four-cylinder engine, is regulated at the first installation and keeps this tension throughout all service life.