Audi A4, S4

Since 2000 of release

Repair and car operation


Audi A4, S4
+ Introduction
+ Controls and receptions of safe operation
+ Current leaving and service
- The engine
   Specifications
   Removal and installation of the top cover of the engine / the bottom protection of an impellent compartment/stretcher
   Compression check in engine cylinders, revealing of leaks
   Check of the engine by means of the vacuum gauge
   + 4-cylinder petrol engines
   + 6 and 8-cylinder petrol engines
   - 4-cylinder diesel engines
      The general data
      Removal and installation of a gear belt, engines of 1.9 l (AVB, AWX, AVF)
      Натяжитель a belt with демпфированием a 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 a drive of auxiliary units
   + 6-cylinder diesel engines
   + System of greasing of the engine
+ Systems of cooling, heating and the air conditioner
+ Power supply systems, release and decrease in toxicity of the fulfilled gases
+ Systems of an electric equipment of the engine
+ Manual box of a gear change
+ Automatic transmission
+ Coupling, power shafts and differential
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment


4-cylinder diesel engines

The general data

The diesel 4-cylinder engine of 1.9 l TDI

1 — the Camshaft
2 — the Block the pump-atomizer
3 — the Gear belt
4 — the Candle накаливания
5 — Klinovoj a belt
6 — the Cranked shaft

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

Engines of 1.9 l – рядные, with one верхнерасположенным a cam-shaft (OHC). The Camshaft located in a head of cylinders, is set in motion through a gear belt from a cranked shaft. Fuel injection is carried out by pumps-atomizers in which are united the fuel pump of a high pressure (ТНВД), the valve of management and an atomizer. Pumps-atomizers are set in motion from a camshaft through additional cams. The engine is equipped турбокомпрессором with changeable geometry turbines (VTG-supercharger).


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