Audi A3

Since 1997 of release

Repair and car operation

Audi A3
+ The maintenance instruction
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ The power supply system and release of the fulfilled gases
+ Engine electric equipment
+ Manual box of a gear change
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   Electric equipment of system of comfort
   Diagnostics of malfunctions of an onboard electric equipment - the general information
   Check of the electric motor of a screen wiper
   Check of warmed back glass
   Stoplight check
   Removal, installation and check of a sound signal
   Safety locks
   Fusible inserts - the general information
   Chain breakers (thermal relays)
   The relay
   Replacement of batteries of a key of remote control
   Replacement of the battery/lamp of a key with illumination
   Anticreeping blocking
   Illumination devices
   Replacement of lamps of external illumination
   Replacement of bulbs of internal illumination
   Removal and headlight installation
   Removal and installation of the electric motor of adjustment of range of light
   Removal and installation of the forward index of turn
   Removal and installation of a back lantern
   Adjustment of light of headlights
   Removal and control panel installation
   Removal and installation подрулевого the switch
   Removal and installation of switches and lamps
   Removal, installation and radio receiver coding
   Input of a code of a radio receiver
   Removal and loudspeaker installation
   Removal and installation of the aerial of a roof
   Additional installation of a radio telephone on in special way prepared models
   Removal and installation of the electric motor of a forward screen wiper
   Removal and installation of the lever and the electric motor of a back screen wiper
   Removal and installation of a cleaner of back glass
   Removal and installation of the tank from the pump стеклоомывателя
   Elements темпостата
+ Electroschemes

Elements темпостата


The scheme of connection of components темпостата

1 – a gas Pedal
2 – the Element of management of a throttle
3 – the T-shaped union
4 – the management Module темпостата (J213)
5 – the Assembly block of the relay
6 – Burn down electroconductings
7 – the Switch of management of functioning темпостата (Е45)
8 – the Vacuum pump темпостата (V18)
9 – the Vacuum hose
10 – the Gauge-switch of the vacuum ventilating valve of coupling (F36)
With – the gauge-switch of position of a pedal of coupling
Only models with РКПП
11 – the Gauge-switch of the vacuum valve of ventilation of brakes (F47)

Address to an illustration and the basic scheme of an electric equipment темпостата.

Resulted below the scheme of electric connections are made by a schematic principle when components of each contour communicate among themselves on the shortest way without the form of a lining of electroconducting round located on a way of its following of components and plaits.

On cars Audi A3 the single-wire scheme of inclusion of devices of an electric equipment is applied. With plus of power supplies consumers incorporate a wire, and to a minus – through a body of the car or on weight. Such method allows to reduce number of wires and to simplify their installation. Connection with weight of a minus of power supplies reduces electrochemical corrosion of metal details of a body. In certain cases it is not enough direct connection of the electric consumer with weight, and the consumer incorporates to weight an additional wire of usually brown colour.

Pressure of a food is brought to the majority of consumers through the ignition switch. Feed circuits of those knots of the electric equipment which work can be demanded in any circumstances, are always connected to the storage battery, irrespective of position of a key in the ignition lock.

For connection of wires electric sockets with flat contacts are used.

For a normal food of consumers the electric chain should be closed, otherwise at it there will be an electric current, for example, if to the screen wiper electric motor positive pressure moves, it will not work until its electric chain will not be connected to weight. In an electric chain switches, the relay, safety locks, measuring devices, electric motors and other consumers of the electric power can be connected. For correct connection of consumers of the electric power contacts of electric sockets have corresponding marks. Connection with weight of the car is carried out or is direct through the case of the consumer of the electric power or an additional wire.

Contact 30

On this contact always there is a positive pressure of the accumulator. The wires connected to this contact, have red or red colour with a strip.

Contact 31

Contact incorporates to weight of the car a wire of brown colour.

Contact 15

On this contact positive pressure after ignition inclusion moves. The wires connected to this contact, have green or green colour with a strip.

Contact Х

On contact pressure after ignition inclusion moves, however at inclusion of a starter pressure is disconnected. It gives the chance to disconnect at engine start consumers of the electric power unnecessary at this moment. Headlight headlights receive a food also from this contact, therefore at the included headlight and ignition deenergizing there is an automatic switching on dimensional fires.

Colours of wires are designated by Latin letters.

If in a designation of colour of a wire there are some letters divided by a sign / the left group of letters specifies in primary colour of a wire, and right – on colour of a strip.

Dark blue
The brown
The cream
The yellow
The green
The grey
The blue
The salad
The lilac
The transparent
The orange
The claret
ro, rt
The red
The pink
The black
The violet
The white

On the scheme all consumers of a current and switches are represented in neutral position.

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