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









Box for electronics

The cover of a box with electronics is fixed by five bolts with шестигранными (arrow) heads. One of bolts should unscrew through an aperture in a cover under a windscreen.


In a box with electronics there is a block of management (2) systems of ignition/injection. In the relay switch (1) the relay of heating of a ljambda-probe (the engine with working volume 2,6) or the height gauge (турбодвигатель with working volume 1,8) is placed.

To protect sensitive blocks of management of system of ignition/injection from heats which reign in the summer in the car, them have placed in the closed box between an impellent compartment and a windscreen. To open a box with electronics, it is necessary to unscrew five bolts with шестигранными heads. In a box with electronics, except the engine management block, in the car with the engine of 2,6 l there is a block of management of ljambda-probe heating.

 Council: the Cover of a box with electronics in влагозащитной to a box should be closed, differently during movement will blow to the driver in feet.