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
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
- System of ignition
   What provides ignition
   When there is an ignition of fuel-air mix?
   Different systems of ignition
   So there is an ignition spark
   Executive body
   System brain
   The signals coming to the control unit
   Adjustment of a detonation
   Be careful in the address with ignition
   Works on system of ignition
   Search of malfunctions in ignition
   Ignition distributor
   Knot of high voltage
   Replacement of spark plugs
   Right choice of spark plugs
   Check of the moment of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics


Works on system of ignition

Ignition stop

The control unit and the terminal cascade inevitably fail if the engine is turned by a starter at the disconnected wire of high voltage. Therefore:


  1. 74 kW engine: disconnect the socket on the terminal cascade (near the ignition coil) at the switched-off ignition.
  2. 92 kW engine: uncover the engine and disconnect the socket on the terminal cascade of power in a package of coils of ignition.
  3. 110 kW four-cylinder engine and six-cylinder engine: disconnect both sockets on the terminal cascade (under a cover) at the switched-off ignition.