Audi A4, S4
Introduction
Controls and receptions of safe operation
Current leaving and service
The engine
Systems of cooling, heating and the air conditioner
- Power supply systems, release and decrease in toxicity of the fulfilled gases
    Power supply systems of petrol and diesel engines
    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. Турбокомпрессор
      Removal and installation of system of release. Replacement of the central, additional muffler, a trailer pipe
      Updating of a lining of system of release / a trailer pipe
      Systems of decrease in toxicity of release - the general information
      The Katalitichesky converter
      Removal and installation catalytic the converter and ljambda-probes
      Турбокомпрессор - the general information and safety measures
      Интеркулер - the general information
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












Updating of a lining of system of release / a trailer pipe

After installation of system of release into place it is necessary to expose correctly it, otherwise there can be the pressure leading to occurrence of cracks and-or noise.

Installation

 PERFORMANCE ORDER

  1. The release system is established in a cold condition. If release system hot, it is necessary for cooling to external temperature.

Operation of lifting and car installation on supports is connected with danger! Therefore before operation carrying out familiarise with Razdelom Poddomkrachivanie and towage.

  1. Lift and establish the car on supports.
  1. Models with клеммной the plug: Ослабьте fastening bolts клеммной plugs.
  1. Displace the additional muffler forward (an arrow on an accompanying illustration) so that the preliminary tightness on the right back collar of the additional muffler made and = 7 – 11 mm.
  1. Tighten in regular intervals fastening bolts клеммной plugs the moment 40Нм.

Models with клеммной the plug located between preliminary and additional mufflers

The preliminary muffler it is necessary to expose only at cars with клеммной the plug located between preliminary and additional mufflers.

 PERFORMANCE ORDER

  1. Ослабьте fastening bolts клеммной plugs, poses. 22 on an illustration System of release of the fulfilled gases. The engine of 2.0 l ALT.
  1. Displace release system forward (an arrow on an accompanying illustration) so that the preliminary tightness on the right forward collar of the preliminary muffler made and = 7 – 9 mm.
  1. Tighten in regular intervals fastening bolts клеммной plugs the moment 40Нм.

Installation of a trailer pipe

 PERFORMANCE ORDER

  1. Trailer pipe establish so that distance "and" at the left it was equal to distance "and" on the right. Simultaneously the distance from cut under a bumper to a pipe above made b = 20 mm.

The diesel engine of 2.5 l

 PERFORMANCE ORDER

  1. Modify the size "and" as follows: Ослабьте a nut (the marksman on an accompanying illustration) communication fastenings between exhaust pipes. Expose exhaust pipes in regular intervals on the centre. Tighten a nut the moment 23Нм.

The petrol engine of 2.5 l

 PERFORMANCE ORDER

  1. Check up distance "and" between a trailer pipe (1) bumper (2). It should make 40 mm.