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
Wires
The cross-section section of a wire gets out depending on requirement for power supply of each consumer: the control bulb manages a wire in the thickness in 0,5 mm 2, and the wire of 16 mm 2 is necessary in the thickness to a starter. Too thin wire heats up, and pressure falls. Then instead of desirable 12 In, for example, on headlights, arrives, maybe, only 10 or 9,5 In – light becomes dim.