Audi A4

since 1994 release

Manual of the car

Audi A4
+ 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 Motronic
      The major knots
      So the system of injection 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)
      Cable of a butterfly valve
      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
+ System of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics


Violations in work and self-diagnostics

The electronic control unit system of injection Motronic can distinguish and remember the defects arising in operating time of the engine. The recognizable defects are remembered in the memory device of the computer. If you assume existence of defect in a control system of ignition/injection, then you can carry out a survey of the computer only in the workshop Audi. But in addition you can take our advice on assistance at malfunctions where the numerous possible defects revealed by self-diagnostics are given.

 Council: The control unit of system of ignition/injection of Motronic can distinguish 46 types of malfunctions in electric knots of system of ignition/injection and keep them in memory of the computer. Sporadic the arising defects are erased from memory of the computer after 50 starts of the cold engine in case they do not arise repeatedly.