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
+ 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
   + 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
      Removal and installation of system of release. Replacement of the central, additional muffler, trailer pipe
      Correction of laying of system of release / trailer pipe
      Systems of decrease in toxicity of release - the general information
      Catalytic converter
      Removal and installation of the catalytic converter and lambda probes
      Turbocompressor - the general information and precautionary measures
      The intercooler - the general information
+ 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





The intercooler - the general information

The intercooler in fact is the heat exchanger intended for decrease in temperature of the air passing through it.

Air, contracting in a turbocompressor, heats up. At the same time the partial pressure of oxygen falls. For prevention of it, the intercooler after which the cooled air comes to the inlet pipeline is used.

Compressed air comes not to the inlet pipeline (as on ordinary diesel engines), and in the intercooler. The intercooler is located in a forward part of a motive compartment and is blown naturally at the movement of the car. Air from the compressor comes to the lower part of a cooler and in process of the movement is cooled up. The intercooler looks as well as a radiator of the cooling system. From the intercooler air moves in the inlet pipeline.