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
   - Cooling system
      General information
      Antifreeze - a security measure from freezing
      Replacement of cooling liquid
      Removal and installation of the thermostat
      Check of the thermostat
      Replacement of hoses of the cooling system
      Removal and installation of a radiator
      Removal and installation of the fan of a radiator
      Removal and installation of the pump of cooling liquid
   + Systems of ventilation, heating and air conditioning
+ 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 the fan of a radiator

Petrol engines 1.6, 1.8 of l

Removal

Consolidations and sealing rings are surely replaced.

 PERFORMANCE ORDER

  1. Remove a front bumper, address to the Section Removal and installation of a front bumper.
  2. Install the forward panel in situation for carrying out servicing, address to the Section Installation of the Forward Panel in situation for maintenance.
  3. Remove a radiator, address to appropriate section.
  1. Disunite sockets (1) and (2). Take aside electric wires of the electric motor of the fan.
  1. Disconnect the radiator fan from a casing (an arrow on an accompanying illustration).

Installation

 PERFORMANCE ORDER

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

Diesel engine of 1.9 l

Here only removal of the additional electric fan is described. Removal of the fan with the viscous coupling of the diesel engine of 1.9 l is described in the Section Removal and installation of a gear belt, engines of 1.9 l (AVB, AWX, AVF).

All cable collars which were removed or cut, at installation have to be put on the places.

Removal

 PERFORMANCE ORDER

  1. Install the forward panel in situation for carrying out servicing, address to the Section Installation of the Forward Panel in situation for maintenance.
  2. Models with AT: Disconnect liquid hoses for AT at the top of and in the bottom of a radiator. Merge liquid in capacity and tie the disconnected hoses to a longitudinal beam for prevention of a further effluence of liquid. Close hoses that dirt did not get to them.
  1. Disunite the socket (3) to the additional fan.
  1. Disconnect the control unit of the additional fan (2).
  2. Disunite the socket (1) switch of the valvate lock.
  3. Take aside electric wires.
 
  1. Disconnect a fan casing (arrows on an accompanying illustration) and take out it.
  1. Disconnect the fan electric motor at a casing (an arrow on an illustration).

Installation

 PERFORMANCE ORDER

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