Audi A4

since 1994 release

Repair and operation of the car



A4 Audi
+ 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
      - The general electric circuit of Audi A4 with the shestitsilidrovy engine with a working volume of 2,8 l and 128 kW
         Accumulator, starter, generator of alternating current
         Control unit of multipoint injection, system of ignition, injection valves
         Control unit of multipoint injection, measuring instrument of a stream of fresh air, potentiometer of a butterfly valve, Hall sensor, detonation sensors, terminal cascade of power of coils of ignition
         Control unit, starter switch
         Lighting
         Safety locks
         Switchboard insert, movement speed sensor, fuel reserve, fuel pump, oil pressure switch
         Switchboard insert, control of cooling liquid
         Switch of the alarm system, switch of indexes of turns
         The switch of screen wipers with preryv. the mode, systems of washing of glasses, clarifications of headlights, the warmed sprays of washing of glasses
         The door contact switch, lamps of salon with the slowed-down switching off, a mirror for a make-up
         Supercharger of fresh air, heating of back glass
      The four-cylinder engine with a working volume of 1,6 l and 74 kW
      The four-cylinder engine with a working volume of 1,8 l and 92 kW
      The four-cylinder turbo engine with a working volume of 1,8 l and 110 kW
      Additional complete set (A sliding/removable roof with the electric drive)
      Additional complete set (Central lock)
      The central lock / the infrared control unit of anticreeping system with control of salon
      Additional complete set oil temperature Voltmeter/indicator
      Additional complete set Window regulators with the electric drive
   + Accumulator
   + Generator
   + Starter
+ System of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics





Control unit, starter switch

Control unit of multipoint injection, ignition moment sensor, number of turns of the engine

The control unit of multipoint injection, the relay of the fuel pump, the diagnostic socket, lambda probes with heating

Switch of a starter, H-contact unloading relay

E87 — the module of management and the indicator of climatic installation / Climatronic
G4 – the ignition moment sensor
G28 – the sensor of number of turns of the engine
J104 – the ABS control unit with EDS
J189 – system of autocontrol
J192 – the control unit of multipoint injection
J217 – the control unit of an automatic transmission
T3l – the shtekerny socket, 3-shtyrkovy, black, in a motive compartment at the left
T3m – the shtekerny socket, 3-shtyrkovy, gray, in a motive compartment at the left
T6g – the shtekerny socket, 6-shtyrkovy, gray, station of sockets on the right, is resistant And
T6z – the shtekerny socket, 6-shtyrkovy, red, station of connection el. boxes, the moistening box
T10 – the shtekerny socket, 10-shtyrkovy, brown, station of connection el. boxes, the moistening box
A76 – connection (the plug K, diagnostics) on a switchboard of group of wires
D80 – connection with plus (87a – for the electromagnetic valve of the coal filter – system), in group of wires in a motive compartment
81 – connection weighing-1-, on a switchboard of group of wires
T10b – the shtekerny socket, 10-shtyrkovy, orange, station of sockets on the right, is resistant And
T10m – the shtekerny socket, 10-shtyrkovy, black, station of connection el. boxes, the moistening box
T10x – the shtekerny socket, 10-shtyrkovy, blue, station of sockets on the right, is resistant And
T10y – the shtekerny socket, 10-shtyrkovy, blue, station of sockets on the right, is resistant And
T10z – the shtekerny socket, 10-shtyrkovy, yellow, station of connection el. boxes, the moistening box
124 – connection with weight, in group of wires in a motive compartment on the right

* – cars with AKP
** – the wire is absent in cars with climatic installation
*** – cars with ABS
**** – cars with system of autocontrol
A21 – connection (86s), in group of wires of a switchboard
E87 – the module of management and the indicator of climatic installation / Climatronic
G2 – the sensor of temperature of chilled liquid
G39 – a lambda probe
G62 – the sensor of temperature of chilled liquid
G108 – a lambda probe of II
J17 – the relay of the fuel pump
J104 – the ABS control unit with EDS
J192 – the control unit of multipoint injection
J217 – the AKP control unit
J234 – the block of justices. safety cushion
J362 – control units of system of prevention of departure of the car
N71 – the valve of stabilization of XX
N80 – the electromagnetic valve I of the coal filter of system
N156 – the valve of register switching of an inlet collector
T4y – the shtekerny socket, 4-shtyrkovy, black, in a motive compartment on the right
T4z – the shtekerny socket, 4-shtyrkovy, black, in a motive compartment on the right
83 – connection weighing-1-, in group of wires ahead on the right
84 – connection with weight, mass of the engine, in group of wires ahead on the right
T6z – the shtekerny socket, 6-shtyrkovy, red, station of connection el. boxes, the moistening box
T10 – the shtekerny socket, 10-shtyrkovy, brown, station of connection el. boxes, the moistening box
T10b – the shtekerny socket, 10-shtyrkovy, orange, station of sockets at the left, is resistant And
T10m – the shtekerny socket, 10-shtyrkovy, black, station of connection el. boxes, the moistening box
T10v – the shtekerny socket, 10-shtyrkovy, brown, station of sockets on the right, is resistant And
T10y – the shtekerny socket, 10-shtyrkovy, blue, station of connection el. boxes, the moistening box
T10z – the shtekerny socket, 10-shtyrkovy, yellow, station of connection el. boxes, the moistening box
T16 – the shtekerny socket, 16-shtyrkovy, (connection for diagnostics), the average console behind
Z19 – heating a lambda probe
Z28 – heating a lambda probe of II
D – starter switch
J59 – the H-contact unloading relay
J362 – the control unit of prevention of departure of the car
R – radio
T1 – the shtekerny socket, 1-shtyrkovy
T10 – shtekerny connection, 10-shtyrkovy, station of connection el. boxes, the moistening box
T10f – the shtekerny socket, 10-shtyrkovy, black, station of sockets on the right, is resistant And
T10i – the shtekerny socket, 10-shtyrkovy, black, on Wednesdays. kons.
V94 – the engine of the central lock with the control unit for the slowed-down switching off of illumination of salon and anticreeping sign. installation
A2 – connection with plus (15) in group of wires of a switchboard
A17 – connection (61), in group of wires of a switchboard