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


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4-cylinder diesel engines

General information

Diesel 4-cylinder engine of 1.9 l of TDI

1 — the Camshaft
2 — the Block the pump nozzle
3 — the Gear belt
4 — the Glow plug
5 — Klinova a belt
6 — the Bent shaft

7 — the Oil pump
8 — the Index of level of oil
9 — the Oil filter
10 — the Flywheel
11 — the oil Refrigerator
12 — the pressurization air Refrigerator (intercooler)

Engines of 1.9 l – line, with one verkhneraspolozhenny cam-shaft (OHC). The camshaft located in a head of cylinders is set in motion through a gear belt from a bent shaft. The injection of fuel is made the pump nozzles in whom are united the fuel pump of high pressure (FPHP), the valve of management and a nozzle. The pump nozzle are set in motion from the camshaft through additional cams. The engine is equipped with a turbocompressor with changeable geometry of the turbine (VTG supercharger).