Audi S4

since 2000 release

Repair and operation of the car



Audi S4
+ Introduction
+ Governing bodies and methods of safe operation
+ Current leaving and service
- Engine
   Specifications
   Removal and installation of the top cover of the engine / lower protection of a motive compartment / stretcher
   Check of a compression in engine cylinders, identification of leaks
   Check of the engine by means of the vacuum gage
   + 4-cylinder petrol engines
   + 6-and 8-cylinder petrol engines
   - 4-cylinder diesel engines
      General information
      Removal and installation of a gear belt, engines of 1.9 l (AVB, AWX, AVF)
      Natyazhitel of a belt with damping by friction
      Removal and installation of a head of cylinders, diesel engines of 1.9 l (AVB, AWX, AVF)
      Removal and installation of a belt of the drive of auxiliary units
   + 6-cylinder diesel engines
   + Engine lubrication system
+ Cooling systems, heating and air conditioner
+ Power supply systems, release and decrease in toxicity of the fulfilled gases
+ Systems of electric equipment of the engine
+ Manual box of gear shifting
+ Automatic transmission
+ Coupling, power shafts and differential
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment





Natyazhitel of a belt with damping by friction

Weakening of a gear belt

 PERFORMANCE ORDER

  1. Turn off a nut of fastening (1) of a tension roller.
  1. Turn counterclockwise the clown HAZET 2587-1 key so that the tension roller could be recorded a lock finger of T 10115 or similar.
  1. Turn HAZET 2587-1 key clockwise against the stop and tighten by hand a nut (1).
  1. Take off a gear belt at first from the pump of cooling liquid and then from other cogwheels.

Installation

 PERFORMANCE ORDER

  1. Check whether the tension roller by a lock finger of T 10115 is recorded and whether it is recorded by a nut on the right emphasis.

Adjusting works with a gear belt need to be performed only on the cold engine. At turn of the camshaft the stop of any piston in the provision of VMT is not allowed. Danger of damage of the valves/bottom of pistons.

  1. Check the provision of a tension roller: The lock pad (an arrow on an accompanying illustration) has to enter a groove on a head of cylinders, and an opposite case it is appropriately necessary to displace the holder.
  1. Double-check whether VMT tags coincide.
  1. Turn off bolts of fastening of a wheel of the camshaft so that the wheel could move in oblong openings.
  1. Establish a wheel in oblong openings in average situation.
  1. Put on a gear belt a camshaft wheel, a tension roller, a wheel of a bent shaft and in the last turn on a wheel of the pump of cooling liquid.

Tension of a gear belt

 PERFORMANCE ORDER

  1. Take out a lock finger of T10115.
  1. Turn off a nut of fastening (1) of a tension roller.
  2. Turn the clown of a tension roller HAZET 2587-1 key in the direction of an hour hand so that the index (2) faced on the center a window of a basic plate.
  3. Holding a tension roller in this situation tighten a nut of fastening of a tension roller the moment of 20 Nanometers + 45 °.
  4. Tighten bolts of fastening of a wheel of the camshaft the moment of 25 Nanometers.