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
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
- Electrotechnical equipment
   Minus is connected to weight
   The help for orientation in the electrotechnical equipment of the car
   Wires
   Connections of wires
   Central switching knot
   Support of additional relays
   Box for electronics
   Relay and control units
   Switching relay
   H-contact of the relay of unloading
   Table of the relay and control units
   Safety locks
   Table of safety locks
   + Electric circuits
   + Accumulator
   + Generator
   + Starter
+ System of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics





Connections of wires

Loose connections of wires mentioned long time in statistics of accidents of ADAC as the most often found reason of accidents – and it concerned all cars.

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

Here the most often found clamps of sockets:

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









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