Vehicle power devices Audi 80 B3

Starter
To start an internal combustion engine, a small electric motor, a starter, is required. In order for the engine to start, the starter must provide the engine...

Possible starter malfunctions
If the starter does not rotate, you should first check for at least 8 V at terminal 50 of the traction relay. If the voltage is lower than this value, you...

Removal and installation the starter
Removal Caution: Disconnect the battery ground cable, otherwise there is a risk of short circuit. Disconnect the wires: 1 terminal 30, directly from the...

Checking and replacing the traction relay
If the traction relay fails, the starter pinion does not engage with the flywheel ring gear. Because of this, the starter cannot turn the engine. Examination...

Generator
1 - front part 2 - drive bearing 3 - plate 4 - segment key 5 - rotor 6 - rear ball bearing 7 - stator 8 - diode board 9 - carbon brushes 10 - voltage regulator...

Possible generator faults

Removal and installation the generator
Removal Disconnect the battery ground cable. Loosen and remove the V-belt, unscrew the clamp bolt. Unscrew the cable behind the generator. Unscrew the bolt on...

Replacing/tensioning the V-belt
Loosen the generator tension bracket "A" mounting bolt by one turn. Note: The generator should move slightly. Turn tension nut "B" to the left, thereby...

Replacing/checking generator/voltage regulator brushes
Depending on the version, generators from BOSCH or VALEO can be installed. Carbon brushes can only be replaced in a BOSCH generator. In a VALEO generator, the...

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80(B4, 1991-1996)

80(B3, 1986-1991)

80(B3, 1986-1991, petrol)

80(B2, 1979-1986)