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
   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
      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





Replacement of a gear belt of the GRM drive

GRM Zubchatoremyonny drive. Petrol engine of 3.0 l of ASN

1 — the Screw *, 45nm
2 — the Washer
3 — the Bolt, 45nm
4 — the Tension roller
5 — the Tension lever. Establish a washer (6)
6 — the Washer of the tension lever
7 — the Gear belt
8 — the Screw, 45nm
9 — the Wheel of a gear belt, the drive of final valves
10 — the Wheel of a gear belt, the drive of inlet valves
11 — the Screw *, 10nm
12 — the Holder of the directing roller
13 — the Screw *, 10nm
14 — the Cover of a gear belt, back right
15 — the Directing roller
16 — the Nut, 10nm
17 — the Screw, 10nm
18 — the Pump of cooling liquid


19 — Sealing laying *
20 — the Wheel of a gear belt, the drive of inlet valves
21 — the Cover of a gear belt, back left
22 — the Screw, 10nm
23 — the Wheel of a gear belt, the drive of final valves
24 — the Bolt, 100nm
25 — the Sealing ring *
26 — the Cover
27 — the Lock ring
28 — the Diamond washer *
29 — the Roller eccentric
30 — the Screw, 45nm
31 — the Wheel of a gear belt, a cranked shaft
32 — the Central bolt *, 200nm + 180 °. In addition do not grease
33 — the Device of a tension of a gear belt
34 — the Screw, 10nm
*) Surely replace

GRM drive belt covers

1 — the Screw, 10nm
2 — the Screw, 10nm
3 — the Pipe of cooling liquid, a lobby
For removal of a cover of a gear belt it is necessary to unscrew only screws (1) and (2). Hoses of cooling liquid should not be disconnected
4 — the Cover of a gear belt, a lobby right
5 — the Cover of a gear belt a lobby left

6 — the Plug
7 — the Screw, 6nm
Self-stopped, surely replace.
8 — the Cover of a gear belt lower
9 — the Screw, 10nm