Audi A4

Since 1994 of release

Repair and car operation



Audi А4
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ Exhaust system
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and channels всасывания
+ Injection system
+ Coupling
+ Transmission and the main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tyres
- The electrotechnical equipment
   The minus is connected to weight
   The help for orientation in the electrotechnical equipment of the car
   Wires
   Connections of wires
   The central switching knot
   Support of additional relays
   Box for electronics
   The relay and management blocks
   The switching relay
   H-contact of the relay of unloading
   The table of the relay and management blocks
   Safety locks
   The table of safety locks
   + Electric schemes
   + The accumulator
   + The generator
   + Starter
+ Ignition system
+ Illumination
+ The alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics



Connections of wires

In the statistican of accidents ADAC loose connections of wires mentioned long time as most often meeting reason of failures – and it concerned all cars.

It was put an end by firm Audi: almost all sockets are in addition fixed by a mechanical way by means of clamps. (To disconnect a socket, it is necessary to overcome a clamp.)

Here most often meeting clamps of sockets:

  • Sockets of system of injection are fixed by a wire collar which needs to be wrung out downwards.
  • The majority многоштырьковых sockets on each side has lock grooves which need to be pressed to remove a socket.
  • For example, in the combined device is многоштырьковые sockets which are fixed by the inserted collar.