Audi A4

since 1994 release

Repair and operation of the car



A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ System of an exhaust
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and channels of absorption
- System of injection
   + System of injection of Motronic
   - System of injection of MPI and MPFI
      Additional functions
      Knots of system of injection
      Functioning
      Adjustment with the help a lambda probe
      Violations in work and self-diagnostics
      Self-help
      Visual control
      Check of knots
      Dismantle of separate details
      Cable of a butterfly valve
      Inlet collector
      Idling adjustment
      Check of exhaust gases
      The help at malfunctions
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ System of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics





Additional functions

  • MPI/MPFI represents very expensive system of injection which control unit in addition operates electronic ignition.
  • The control unit of system of injection of MPI/MPFI is capable to full diagnostics. It means that the failures arising in use remain in a computer memory information in which is erased only after shutdown of the accumulator.
  • In this system that also those defects which arise only for a short time are remembered is ingenious. By experience, it just those defects which are most difficult for finding.
  • After 50 starts of the engine the defect which appeared only once is automatically erased in memory of the computer.