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
+ Cooling systems, heating and air conditioner
- Power supply systems, release and decrease in toxicity of the fulfilled gases
   - Power supply systems of petrol and diesel engines
      General information and security measures
      Dropping pressure in fuel system
      Removal and installation of the fuel pump with the fuel reserve sensor
      Removal of air from fuel system (the petrol engine of 1.8 l)
      Removal and installation of the fuel filter
      Removal and installation of the air filter
   + System of injection of fuel of the petrol engine
   + System of injection of fuel of the diesel engine
   + Systems of release and decrease in toxicity of the fulfilled gases. Turbocompressor
+ 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 the air filter

For carrying out procedure on petrol engines address to illustrations:

Air filter. Petrol engine of 1.6 l of ALZ

1 — the Filter element
2 — the Top part of the air filter
3 — the Air duct
4 — Consolidation. In the presence of damages replace
5 — the Measuring instrument of mass of air with the sensor of temperature of the soaked-up air. Tighten bolts the moment 6nm
6 — the Screw, 2nm

7 — the Heat-shielding screen
8 — the Support
9 — the Lower part of the air filter
10 — the Screw, 20nm
11 — Air ducts to the forward panel

Air filter. Petrol engine of 2.0 l of AWA

1 — the Screw self-tapping screw
2 — the Air duct
3 — the Air duct. To the forward panel
4 — the Clip
5 — the Sealing ring
6 — the Cover
7 — the Measuring instrument of mass of air

8 — the Connecting hose
9 — the Screw self-tapping screw
10 — the Screw self-tapping screw
11 — the Top part of the air filter
12 — the Element of the air filter
13 — the Lower part of the air filter

Diesel engine of 1.9 l

Removal

 PERFORMANCE ORDER

  1. Remove the top cover of the engine and the damper of fluctuations which is under it, address to the Section Removal and installation of the top cover of the engine / the lower protection of a motive compartment / stretcher.
  1. Turn out screws (arrows on an accompanying illustration).
  1. Take out an air duct (1) and (2).
  1. Disunite the socket (1) measuring instrument of mass of air.
  1. Disconnect a hose of air supply (2), previously having opened a collar.
  1. Take aside a plait of wires at the case of the air filter and take out the filter case (the shooter on an accompanying illustration).

Installation

 PERFORMANCE ORDER

  1. Installation is carried out in sequence, the return to removal.

Diesel engine of 2.5 l

Removal

 PERFORMANCE ORDER

  1. Remove the top cover of the engine, address to the Section Removal and installation of the top cover of the engine / the lower protection of a motive compartment / stretcher.
  1. Remove the channel of absorption of air (1) to the air filter.
  1. Uncover (2) air filters.
  1. Disunite the socket (1).
  1. Release a collar (2).
  2. Disconnect a hose (3) from the case of the air filter.
  3. Turn out the screw (4) and take out the case of the air filter.

Installation

 PERFORMANCE ORDER

  1. Installation is carried out in sequence, the return to removal.