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
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
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Wires Cross section of a wire is chosen depending on the need for power supply of each consumer: the control bulb manages a wire 0,5 mm thick 2, and the starter needs a wire 16 mm thick 2. Too thin wire heats up, and tension falls. Then instead of desirable 12 V, for example, on headlights, arrives, maybe, only 10 or 9,5 In – light becomes dim.
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