Audi Q3: Generator, Checking

Perform Generator Test

Vehicle Diagnostic Tester is attached.

- Select the Diagnostic mode and start the diagnostics.

- Select the tab Test Plan.

- Select Select Individual Tests and choose the following sequence.

• Body
• Electrical Equipment
• 27 - Starter, voltage supply
• Electrical Components
• C - Generator, Checking

The Vehicle Diagnostic Tester continues with the generator test from here on.

Overview - Generator, Bosch through MY 2000

1 - Bolts

• 1 Nm

2 - Cover

• With three tabs

3 - Bolts

• 2 Nm

4 - Voltage Regulator

• Removing:
  • Remove the bolts -1- and remove the protective cap -2-.
  • Remove the bolts -3- and remove the voltage regulator.
• Carbon brushes wear limit: 5 mm

5 - Generator

Overview - Bosch Generator from 2001

  Note

The generators were implemented as a running change.

1 - Generator

2 - Voltage Regulator

• Removing and installing. Refer to → Chapter "Voltage Regulator, Bosch Generator from 2001, Removing and Installing".
• Carbon brushes, checking. Refer to → Chapter "Carbon Brushes, Checking, All Bosch Generators from 2001"

3 - Bolt

• 2.5 Nm

4 - Cover

5 - Nut

• 12 Nm

6 - Nut

• 30 Nm

7 - Bolt

• 3 Nm

8 - Bolt

• 1.5 Nm

Voltage Regulator, Bosch Generator from 2001, Removing and Installing

Removing

- Remove the generator. Refer to → Electrical Equipment; Rep. Gr.27; Generator; Generator, Removing and Installing.

- Remove the bolt -1- and the nuts -3- and -4-.

- Remove the cover -2- on the rear side of the generator.

- Remove the bolts -arrows-.

- Remove voltage regulator.

Installing

- When installing the voltage regulator, make sure the carbon brushes rest correctly on the slip rings.

Install in reverse order of removal, observing the following:

- Install the generator. Refer to → Electrical Equipment; Rep. Gr.27; Generator; Generator, Removing and Installing.

Overview - Bosch Generator from 2007

  Note

The new generators are installed as a running change.

1 - Nut

• 65 Nm

2 - Ribbed Belt Pulley

3 - Generator

4 - Voltage Regulator

• Removing and installing. Refer to → Chapter "Voltage Regulator, Removing and Installing, Bosch Generator from 2007".
• Carbon brushes, checking. Refer to → Chapter "Carbon Brushes, Checking, All Bosch Generators from 2001"

5 - Bolt

• 1.5 Nm

6 - Cover

7 - Bolt

• 3 Nm

8 - Bolt

• 2.5 Nm

Voltage Regulator, Removing and Installing, Bosch Generator from 2007

Removing

- Remove the generator. Refer to → Electrical Equipment; Rep. Gr.27; Generator; Generator, Removing and Installing.

- Remove the bolts -arrows-.

- Remove the cover -1- on the rear side of the generator.

- Remove the bolts -arrows-.

- Remove voltage regulator -1-.

Installing

- When installing the voltage regulator, make sure the carbon brushes rest correctly on the slip rings.

Install in reverse order of removal, observing the following:

- Install the generator. Refer to → Electrical Equipment; Rep. Gr.27; Generator; Generator, Removing and Installing.

Carbon Brushes, Checking, All Bosch Generators from 2001

Procedure

- Remove the voltage regulator: to 2007. Refer to → Chapter "Voltage Regulator, Bosch Generator from 2001, Removing and Installing", after 2007 → Chapter "Voltage Regulator, Removing and Installing, Bosch Generator from 2007".

- Check the length -a- of the carbon brushes.

• Wear limit: -a- = 5 mm.

- Install the voltage regulator: to 2007. Refer to → Chapter "Voltage Regulator, Bosch Generator from 2001, Removing and Installing", after 2007 → Chapter "Voltage Regulator, Removing and Installing, Bosch Generator from 2007".

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