Audi 80/Avant (B4)

Since 1991-1995 of release

Repair and car operation



Audi 80/Avant
+ The description
+ Engines
+ System of release of the fulfilled gases
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and воздухозаборные channels
+ Injection system
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Antiblocking system of brakes
+ Wheels and tyres
+ Kuzovnaja electrosystem
- Ignition system
   Various systems of ignition
   Principle of work of ignition
   Executive office
   System "brain"
   Impulses for the management block
   Regulation on a detonation
   Security measures at work with ignition system
   Repair of system of ignition
   Diagnostics of system of ignition
   The ignition distributor
   The gauge of detonation combustion
   High voltage elements
   Replacement of spark plugs
   Spark plugs
   Check of the moment of ignition
+ Illumination
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
+ Specifications



Security measures at work with ignition system

In a motor compartment of car Audi 80 special tablet warns about a high voltage in ignition system, and it is not so causeless: in a thin wire of a chain of management there can be pressure to 100 In with the big current strength, not to mention the dangerous high-voltage pressure of ignition making from above 30 000 In (but with a small current strength). Though, fortunately, it is not known about the automobile owners killed by system of ignition, but nevertheless the touch to not isolated wires in adverse conditions can become very dangerous, especially for the people, suffering warm illnesses. Therefore:

  • To touch all electric cables – and to connections of control devices, – and also to disconnect or connect them follows only at the switched off ignition.
  • To disconnect the storage battery follows only at the switched off ignition.
  • If the engine needs to be turned simply a starter, without starting, it is necessary to disconnect ignition system (the following section see).

  • Before washing the engine, it is necessary to disconnect ignition system.
  • For engine start at the discharged storage battery by means of the device for the accelerated charge it can be connected not longer than for one minute, and pressure should not exceed 16,5 Century
  • At obvious or prospective defect of system of ignition it is necessary to disconnect ignition system at car towage (the following section see).
  • It is impossible to connect the condenser to the plug of 1/- coils of ignition.
  • Бегунок the ignition distributor it is impossible заменть for the first comers, its resistance makes 1 clod and a designation R1 (models with 4 and 5-cylinder engines).
  • To apply with high-voltage thick wires of system of ignition only resistance 1 clod.
  • To apply only such contact tips of the spark plug which resistance makes 5 clod.
  • At carrying out of electrowelding works in the car cables of the storage battery should be disconnected.