Audi A4, S4

since 2000 release

Repair and operation of the car

Audi A4, S4
+ Introduction
+ Governing bodies and methods of safe operation
+ Current leaving and service
- Engine
   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
      Main data
      Replacement of a gear belt of the GRM drive
      Removal and installation of a head of the block of cylinders
      Removal and installation of a belt of the drive of auxiliary units
   + 4-cylinder diesel engines
   + 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

Removal and installation of a belt of the drive of auxiliary units

Elements of the drive of auxiliary units. 6-cylinder petrol engine

1 — Klinova a belt
2 — the Bolt, 23nm
3 — the Generator
4 — the Bolt, 45nm
5 — the Bolt, 23nm
6 — the Holder of the generator
7 — the Screw, 40nm
8 — the tension Device
9 — the Screw, 23nm
10 — the Pulley of the pump of the hydraulic booster
11 — the Sealing ring. Surely replace
12 — the Hollow bolt, 47nm
13 — the Pressure head pipeline for the power steering pump
14 — the power steering Pump

15 — the Holder of the pump
16 — the Bolt, 23nm
17 — the Bolt, 23nm
18 — the Holder of the compressor of the conditioner
19 — the Bolt, 23nm
20 — the Nut, 23nm
21 — the Bolt, 25nm
22 — the Compressor. Attention: Do not turn off/disconnect pipelines of cooling liquid. After removal fix the compressor a wire on a body. Do not suspend it for pipelines
23 — compressor Plugs
24 — the Pulley of a cranked shaft (a damper of tortional fluctuations)
Depending on a year of release with a persistent washer or without it between a damper of tortional fluctuations (a pulley of a cranked shaft) and a wheel of a gear belt.
25 — the Bolt, 23nm
26 — the Bolt, 23nm

Scheme of laying remnya.6-cylinder petrol engine

1 — the Generator
2 — Klinova a belt
3 — the power steering Pump

4 — the Compressor
5 — the Cranked shaft
6 — the Tension roller



  1. Remove all top covers of the engine. Disconnect the electromagnetic valve of an adsorber of the fulfilled gases and remove a forward right air duct.
  2. Mark with chalk or a felt-tip pen the direction of rotation on a maple belt.

Change of the direction of rotation of a belt, already former in work, can lead to its gap.

  1. Weaken maple a belt and take off it. For this purpose incline the tension device the suitable lever, for example, 3299/3299/1 in the direction of rotation.



  1. Installation is carried out in sequence, the return to removal. Thus at first put on maple a belt a pulley of a cranked shaft and then a tension roller.