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
      Adjustment with the help a lambda probe
      Violations in work and self-diagnostics
      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

Idling adjustment

In all Audi A4 models there is an automatic adjustment of turns of idling. The adjusting screw is already not present by which already it can be adjusted nothing. If idling turns wrong, they are checked. Under the correct conditions of check the number of turns has to be adjusted to 680–820 rpm (the engine of 2,6 l) or 700–800 rpm (the engine of 2,8 l). If is not present, then:

  • Check all knots of system of absorption (hoses, laying) for tightness. The getting additional air can change so strongly number of turns of idling that the idling stabilization valve will not be able even to level them.
  • Consider in a workshop the computer with a memory of malfunctions. Perhaps, in system there is other defect.