Audi A4

since 1994 of release

Repair and car operation



A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ exhaust System
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and absorption channels
- Injection system
   - System of injection of Motronic
      The major knots
      So the system of injection of Motronic functions
      Violations in work and self-diagnostics
      The self-help at injection
      Visual control
      Search of malfunctions in separate knots
      Check of idling and exhaust gases
      Check of exhaust gases (AU)
      Butterfly valve cable
      The help at malfunctions
   + System of injection of MPI and MPFI
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ ignition System
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics





Check of exhaust gases (AU)

In Germany in cars with the adjusted catalytic converter the first verification of the content of exhaust gases in three years after date of the first admission and then every two years is offered, installation of ignition and efficiency of the catalytic converter is thus checked also. If Audi is necessary «the main check» in DEKRA or in TUV, in the beginning it is necessary to inspect composition of exhaust gases. By our experience, quicker than all this becomes in the certified workshops. For economy of time it is possible to add still that in Audi workshop always there are available the latest adjusting data, which other workshops, including DEKRA or TUV, receive with a certain delay.

At check the system of an exhaust should be in working condition, and in an inlet collector should not be подсоса air through not tight sites. Besides, be convinced that the air filter pure and distance between electrodes of spark plugs the correct. In addition, after driving for several months it is recommended to replace oil with short distances. The condensate of the fuel which has got into engine oil, worsens indicators of exhaust gases.

At check the car is connected to an expensive tester in a workshop which printing device generalizes the received measuring sizes for confirmation of the passable check. If the separate set sizes are not reached, there is no confirmation of the passable check. Before replacing expensive knot after not passable check of composition of exhaust gases, repeat check in other workshop. Despite expensive measuring equipment, in results of measurements the disorder meets. Sometimes rather long trip during which the engine, the lambda probe and the catalytic converter reach full working temperature.