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
   Wires
   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)
      Hall sensor, transformer of a high voltage, distributor of ignition, spark plug
      Switch of ignition and starter, unloading relay of contact of X, damping of a fuel tank
      The fan for cooling liquid, a thermoswitch for the fan
      Headlights, parking light, back marker lights, braking signal, backing headlight
      Lighting switches, switches of a passing beam of headlights, light signal driving beam of headlights and parking light
      Illumination of a ware box, illumination of a luggage compartment, illumination of registration plate, illumination of a motor compartment
      System of the blinking indexes of turn and the alarm light system
      System of screen wiper/washing, system of cleaning of headlights, the warmed windscreen washer nozzles, a sound signal
      Combination of devices, tachometer, digital watch, lighting regulator
      Combination of devices, voltage stabilizer, control of cooling liquid, indicator of amount of fuel, speedometer
      Combination of devices, system of minicheck (mini-check-system), control of pressure of oil, control of cooling liquid
      Fog lights, fog back lamps, control of a parking light
      System of ventilation of salon, lighter
      Door switch of lighting, illumination of salon, cosmetic mirror
      Heating of back glass, radio
   + 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
   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
   Starter
   List of malfunctions
+ System of ignition
+ Lighting
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ body Elements
+ Search of malfunctions
+ Specifications





Full electroscheme of the Audi 80 car: 2-liter 4-cylinder engine (66 kW)

Battery, starter, three-phase generator of alternating current, preliminary heating of an inlet collector

Colors of wires: ro – kr, sw – h, ro/sw – kr / h, bl – sn, ro/ws – kr/, sw/ro – h / kr, sw/bl of h / with, sw/ge – h/.

Fuel pump, system of injection, control unit of system of injection of Mono-Motronic

Colors of wires: br – to, gn/ge – z/, ws/gn – / z, ws/bl – / kr, ro – kr, br/gr – to / sr, sw/li of h/l, br/li – to/l, bl/br – sn / to, gn – z, br/ro – to / kr, bl/gn – with / z, gn/ro - / kr, gn/sw – z / h, gn/gr – z/sr, gn/bl – z/sn, sw/ws – b/w.

Lambda probe with heating, the electromagnetic valve of a tank with absorbent carbon, the regulator of provision of a butterfly valve

Colors of wires: br – to, br/ge – to/, bl/sw – sn / h, gn/sw – z / h, sw – h, GR/sw sr / h, ro/ge – kr/, GR/ws sr/, sw/ro – h / kr, ge – br/sw – to / h, sw/bl – h / sn, li/sw – l/h, li – l, ro/sw kr / h.

And – the battery
In – a starter
With – the three-phase generator of alternating current
With 1 – tension regulator
J81 – the relay of preliminary heating of a final collector ("hedgehog")
L51 – the heating resistor of heating of a final collector ("hedgehog")
T1 – one-contact shtekerny connection at a forward wall on the right
T 1p – one-contact shtekerny connection of a bliza of a final collector
T 1q – one-contact shtekerny connection at the left behind the dashboard
(6) – a flexible crossing point, the engine – the generator
(11) – a point of "weight" at a battery nest
G 6 – the fuel pump
G 42 – the sensor of temperature of inlet air
G 62 – the sensor of temperature of cooling liquid
G 69 – a potentiometer of a butterfly valve
J 17 – the relay of the fuel pump
J 257 – the control unit of system of injection of Mono-Motronic
L 30 – a vpryskny nozzle of the first cylinder
T 2x – 2-contact shtekerny connection of black color in an air-tight casing near a plate with the relay (shtekerny connection for diagnostic units)
T 2y – 2-contact shtekerny connection of blue color near a plate with the relay (shtekerny connection for diagnostic units)
T 2z – 2-contact shtekerny connection of white color near a plate with the relay (shtekerny connection for diagnostic units)
T 4f – 4-fold shtekerny connection of brown color, at the left in a motor compartment
T 10 – ten-contact shtekerny connection of black color, shtekerny station in the additional block of the relay
(17 – a point of "weight" on an inlet collector
(50) – a point of "weight" at the left in a luggage compartment
(83) – connection on "weight" (case) – 1 – in an electric chain ahead on the right
(D 8) – connection (the temperature sensor / potentiometer) in an electric chain ahead on the right
* – resistive conducting of 3 Ohms
K – the distributor of electrochains for the diagnostic plug (K-elektrotsepi)
L – the distributor of electrochains for the diagnostic plug (L-elektrotsepi)

 Note: distributors of electrochains are installed on a plate frame from the relay (in a waterproof casing)

G 39 – a lambda probe
J 257 – the control unit of system of injection of Mono-Motronic
L 80 – the electromagnetic valve of a tank 1 with absorbent carbon (pulse)
S 25 – a separate safety lock for heating a lambda probe (in an additional compartment for safety locks)
S 27 – a separate safety lock for system of injection of Mono-Motronic (engine management) and coils of ignition (in an additional compartment for safety locks)
T 1a – one-contact shtekerny connection on the right in a motor compartment
T 2x – two-contact shtekerny connection of black color in a waterproof casing near a plate with the relay (the diagnostic plug)
T 5 – five-contact shtekerny connection of black color, a shtekerny block in the additional block of the relay
V 60 – the regulator of provision of a butterfly valve
Z 19 – heating a lambda probe
(17) – a point of "weight" on a final collector
(83) – connection on "weight" (case) – 1 – in an electric chain ahead on the right
(84) – connection on "weight", the engine case, in an electric chain ahead on the right