Audi 80/Avant (B4)

since 1991-1995 release

Repair and operation of the car

Audi 80/Avant
+ Technical specification
+ Engines
+ System of production of the fulfilled gases
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and airintaking channels
+ System of injection
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Anti-blocking system of brakes
+ Wheels and tires
- Body electrical system
   Minus to "weight"
   Orientation in the electrical system
   Plug connections
   Central switchboard
   Additional block of the relay
   Relay and control units
   Unloading relay of contact of X
   Safety locks
   Table of safety locks
   Electric circuits
   + Full electroscheme of the Audi 80 car: 2-liter 4-cylinder engine (66 kW)
   + 2-liter 4-cylinder engine (85 kW)
   + 2,3-liter 5-cylinder engine (98 kW)
   + 2,6-liter 6-cylinder engine (110kvt)
   + Additional equipment
   + Battery
   - Generator
      Battery charging indicator
      Tension regulator
      Independent repair of the generator and regulator
   Check of a condition of a maple or polilinovy belt
   Tension of a maple belt
   Tension of a maple or poliklinovy belt
   The belt torn maple
   Engine overheat because of damage of a maple belt
   Review of maple and poliklinovy belts
   Replacement of a maple belt
   List of malfunctions
   List of malfunctions
+ System of ignition
+ Lighting
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ body Elements
+ Search of malfunctions
+ Specifications

Battery charging indicator

  • The indicator in a combination of devices is supplied with two positive conclusions, namely one from the plug D + the generator (a blue wire) and another from the plug 15 through the blue multicontact shtekerny connection suitable to the device behind from the ignition lock (a black-blue wire).
  • At inclusion of ignition on the plug 15 tension arrives. The generator, however, for the present does not work and therefore the D +-contact which is without food works as "minus". The indicator flashes because between the onboard network receiving power supply from the accumulator, and the potential difference exists the idle generator.
  • If the engine is started and the generator reached number of turns, necessary for a charge, the regulator of tension connects it to an onboard network. Now food arrives from the plug 15 and in addition from the plug D +. When the potential difference does not exist, the indicator of a charge dies away.
  • At ignition inclusion the burning indicator of a charge has to "predvozbudit" the generator. Only in this case the generator will be able already to make current on low turns. However preexcitement is necessary only at the first start of the generator.

Recharge happens not always

Even if the indicator of a charge does not burn, it does not mean yet that the battery is really charged. It says only that there is no potential difference between the accumulator and the generator any more. If idling the engine all consumers of current are included, for example, the indicator of a charge does not burn though from the accumulator more current arrives, than can develop the low-power generator: but nevertheless the difference of tension with the battery does not exist.