Instruments: Other Audi A3 8P facelift

CONTACT CORROSION

Contact corrosion can occur if incorrect fasteners (bolts, nuts, washers, etc.) are used.

For this reason, only fasteners with a special surface coating are used.

In addition, rubber or plastic parts and adhesive consist of non-conductive materials.

If there are doubts as to whether parts are suitable or not, use new parts.

Note. We only recommend original replacement parts, they have been tested and are compatible with aluminum. We recommend using Audi accessories. Damage resulting from contact corrosion is not covered by warranty.

INSTRUMENT CLUSTER MULTI-PIN CONNECTORS, CONTACT ASSIGNMENT

Note. All warning lamps in instrument cluster are fitted with light-emitting diodes. Instrument cluster must be replaced in the event of warning lamp failure.

Blue 32-pin connector - Midline

Scheme 7

1. Terminal 30
2. Terminal 30
3. Terminal 31
4. Terminal 31
5. CAN Bus diagnosis prompt wire
6. Tank sensor 2 signal (quattro)
7. Brake pad
8. Oil level
9. Not used
10. Not used
11. Not used
12. Not used
13. Not used
14. Low brake fluid level
15. Oil pressure switch
16. Not used
17. Terminal 58d
18. Terminal 30
19. Terminal 31
20. Not used
21. Low coolant
22. Not used
23. Not used
24. Ambient temperature
25. Tank sensor 1 signal
26. Tank sensor 2 total resistance (quattro)
27. Tank sensor 1 total resistance
28. Sensor ground
29. Diagnostic CAN bus High
30. Diagnostic CAN bus Low
31. Transponder Rx
32. Transponder Tx

Blue 32-pin connector - Highline

1. Terminal 30
2. Terminal 30
3. Terminal 31
4. Terminal 31
5. CAN Bus diagnosis prompt wire
6. Tank sensor 2 signal (quattro)
7. Brake pad
8. Oil level
9. Radio controlled clock signal
10. Radio controlled clock 5 V
11. MFT Telematics
12. MFT Out B (left button)
13. MFT Out A (right button)
14. Low brake fluid level
15. Oil pressure switch
16. MFT Enter
17. Terminal 58d
18. Terminal 30
19. Terminal 31
20. Low washer fluid level
21. Low coolant
22. MFT 01 Return
23. MFT Info Traffic Jam
24. Ambient temperature
25. Tank sensor 1 signal
26. Tank sensor 2 total resistance (quattro)
27. Tank sensor 1 total resistance
28. Sensor ground
29. Diagnostic CAN bus High
30. Diagnostic CAN bus Low
31. Transponder Rx
32. Transponder Tx

FUEL LEVEL SENSOR, CONNECTOR ASSIGNMENT

Procedure

Scheme 8

The fuel level sensor -G- is located under the right side of the rear seat bench.

Remove rear seat bench. Refer to Removal and Installation .

Unclip right locking flange cover retaining tabs -arrows-.

Carefully release and disconnect the connector -arrow- on the connector flange.

Scheme 9

Terminal assignment of the 5-pin harness connector at fuel level sensor - vehicles through approximately 11.04

Scheme 10

1. Transfer fuel pump -G6- switched positive
2. Fuel level sensor ground (sensor ground)
3. Wire connection from fuel level sensor to instrument cluster (fuel gauge)
4. Not used
5. Transfer fuel pump ground

Terminal assignment of the 5-pin harness connector at fuel level sensor - vehicles from approximately 11.04

1. Transfer fuel pump switched positive
2. Fuel level sensor ground (sensor ground)
3. Wire connection from fuel level sensor to instrument cluster (fuel gauge)
4. Tank sensor total resistance
5. Transfer fuel pump ground

FSI/TFSI engines

Scheme 11

Note. On vehicles with FSI/TFSI engines, the fuel level signal travels from the fuel level sensor through the fuel pump control module.

The fuel pump control module is located under the rear seat bench on the right side under the cover for the connector flange.

FUEL LEVEL SENSOR 2, CONNECTOR ASSIGNMENT

Procedure

Scheme 12

The fuel level sensor 2 -G169- is at the left under the rear seat bench.

Remove rear seat bench. Refer to Removal and Installation .

Unclip left locking flange cover retaining tabs -arrows-.

Carefully release and disconnect the connector -1- on the connector flange.

Note. Disregard item -2-.

Terminal assignment of the 3-pin harness connector at fuel level sensor 2 - vehicles through approximately 11.04

Scheme 13

1. Wire connection from fuel level sensor to instrument cluster (fuel gauge)
2. Fuel level sensor 2 ground (sensor ground)
3. Not used

Terminal assignment of the 3-pin harness connector at fuel level sensor 2 - vehicles from approximately 11.04

1. Fuel level sensor 2 ground (sensor ground)
2. Wire connection from fuel level sensor to instrument cluster (fuel gauge)
3. Tank sensor total resistance

COOLANT TEMPERATURE SENSORS, CONNECTOR ASSIGNMENT - ENGINE(S): BPY, CBFA & CCTA

Engine Coolant Temperature Sensor -G62

Scheme 14

The engine coolant temperature sensor sits on coolant connector adapter on left of cylinder head.

Carefully release and remove 2-pin electrical connector -arrow-.

Terminal assignment of the 2-pin harness connector at engine coolant temperature senso r

Scheme 15

1. Wire connection from engine coolant temperature sensor to engine control module
2. Sensor ground

Engine coolant temperature sensor on radiator -G83

Scheme 16

The engine coolant temperature sensor on radiator sits on the bottom left of the radiator.

Carefully release and remove 2-pin electrical connector -arrow-.

Note. Ignore -item 1- and -item 2-.

2-pin connector assignment on engine coolant temperature sensor on radiator

1. Wiring connection from engine coolant temperature sensor on radiator to engine control module
2. Sensor ground

COOLANT TEMPERATURE SENSORS, CONNECTOR ASSIGNMENT - ENGINE(S): BUB & CBRA

Engine coolant temperature sensor -G62

Scheme 17

The engine coolant temperature sensor sits on front left of cylinder head.

Carefully release and remove 2-pin electrical connector -arrow-.

Terminal assignment of the 2-pin harness connector at engine coolant temperature sensor

1. Wire connection from engine coolant temperature sensor to engine control module
2. Sensor ground

Engine coolant temperature sensor on radiator -G83

Scheme 18

The engine coolant temperature sensor on radiator sits on the bottom left of the radiator.

Carefully release and remove 2-pin electrical connector -arrow-.

Note. Ignore -item 1- and -item 2-.

2-pin connector assignment on engine coolant temperature sensor on radiator

1. Wiring connection from engine coolant temperature sensor on radiator to engine control module
2. Sensor ground

COOLANT TEMPERATURE SENSORS, CONNECTOR ASSIGNMENT - ENGINE(S): CBEA

Engine coolant temperature sensor -G62

Scheme 19

The engine coolant temperature sensor is located on the left side on the engine behind the air guide pipe leading to the turbocharger.

Carefully release and remove 2-pin electrical connector -1-.

Terminal assignment of the 2-pin harness connector at engine coolant temperature sensor

1. Wire connection from engine coolant temperature sensor to engine control module
2. Sensor ground

Engine coolant temperature sensor on radiator -G83

Scheme 20

The engine coolant temperature sensor on radiator is located on the engine next to the generator.

Carefully release and remove 2-pin electrical connector -1-.

2-pin connector assignment on engine coolant temperature sensor on radiator

1. Wiring connection from engine coolant temperature sensor on radiator to engine control module
2. Sensor ground

INSTRUMENT CLUSTER

Observe notes on contact corrosion. Refer to CONTACT CORROSION .

Note. Do not disassemble instrument cluster.

Removing

If the instrument cluster was replaced with the instrument cluster control module -J285-, select the Replace function for the corresponding control module in the Guided Fault Finding or Guided Functions operating mode.

Select the function or path

Follow the instructions on the Vehicle Diagnosis Tester display.

Switch off ignition and remove ignition key.

Note. It is not necessary to remove the steering wheel in order to remove the instrument cluster.

Remove the steering wheel and adjustment mechanism completely and lay it down.

Remove gap cover -1- in -direction of arrow-.

Scheme 21

Place gap cover on upper steering column trim.

Remove screws -arrows-.

Scheme 22

Pull instrument cluster out until it lies on steering wheel.

Release catches of connectors -1-, turn retainer in -direction of arrow- and disconnect the connector.

Scheme 23

Remove instrument cluster to driver's side between steering wheel and instrument cluster.

Installing

Install in reverse order of removal, observing the following

Follow the instructions on the Vehicle Diagnosis Tester display with a new instrument cluster.

Tightening Specifications

OUTSIDE AIR TEMPERATURE SENSOR

Observe notes on contact corrosion. Refer to CONTACT CORROSION .

Removing

Scheme 24

Remove front bumper cover. Refer to Removal and Installation .

Disconnect the electrical connector -2-.

Carefully press the retaining clips together -arrow- and remove the outside air temperature sensor -G17- -item 1- upward from the bracket.

Installing

Install in reverse order of removal, observing the following

Install the front bumper cover. Refer to Removal and Installation .

RADIO FREQUENCY CONTROLLED CLOCK RECEIVER

Removing

Scheme 25

Remove the rear bumper cover. Refer to Removal and Installation .

Disconnect the connector on the radio frequency controlled clock receiver -J489- -item 1-.

Remove screws -2- and remove radio frequency controlled clock receiver.

Installing

Install in reverse order of removal, noting the following

Install the rear bumper cover. Refer to Removal and Installation .

Tightening Specifications

CIGARETTE LIGHTER OUTLET WITHOUT FUNCTION SELECTOR SWITCH II

Special tools and workshop equipment required

1. Release tool T40148

Removing

Scheme 26

The release tabs -2- on the release tool T40148 must engage in the openings in the cigarette lighter/ 12V outlet -3- -arrow- and the threaded pin -1- must slide down as far as the stop.

If equipped, open the cover -1- and hold it in this position.

Scheme 27

Insert the T40148 all the way into the cigarette lighter/12V outlet.

Rotate the thumbwheel -2- on the T40148 clockwise as far as the stop.

Scheme 28

1. The piston -2- is pulled upward and the release tabs -1- on the T40148 spread -arrows-.

Remove the cigarette lighter/12V outlet using the T40148 from the cigarette lighter illumination -L28-.

Disconnect the electrical connector.

Installing

Install in reverse order of removal, observing the following

Remove the support -1- on the T40148.

Scheme 29

Slide the piston down and hold it in place.

Rotate the thumbwheel -4- on the T40148 counterclockwise -arrow-. This loosens the release tabs -2- on the cigarette lighter -3- so the T40148 can be removed.

CIGARETTE LIGHTER OUTLET WITH FUNCTION SELECTOR SWITCH II

Special tools and workshop equipment required

1. Release tool T40148

Removing

Scheme 30

Remove center console. Refer to Removal and Installation .

Remove the Function Selector Switch II -E272-. Refer to FUNCTION SELECTOR SWITCH II .

Remove screws -arrows-.

Remove the cigarette lighter and bracket from the center console by moving the bracket downward.

The release tabs -2- on the release tool T40148 must engage in the openings in the cigarette lighter/ 12V outlet -3- -arrow- and the threaded pin -1- must slide down as far as the stop.

If equipped, open the cover -1- and hold it in this position.

Insert the T40148 all the way into the cigarette lighter/12V outlet.

Rotate the thumbwheel -2- on the T40148 clockwise as far as the stop.

1. The piston -2- is pulled upward and the release tabs -1- on the T40148 spread -arrows-.

Remove the cigarette lighter/12V outlet using the T40148 from the cigarette lighter illumination -L28-.

Disconnect the electrical connector.

Installing

Install in reverse order of removal, observing the following

Remove the support -1- on the T40148.

Slide the piston down and hold it in place.

Rotate the thumbwheel -4- on the T40148 counterclockwise -arrow-. This loosens the release tabs -2- on the cigarette lighter -3- so the T40148 can be removed.

Install the Function Selector Switch II -E272-. Refer to FUNCTION SELECTOR SWITCH II .

Install center console. Refer to Removal and Installation .

Tightening Specifications

CIGARETTE LIGHTER ILLUMINATION

Removing

Scheme 31

Remove the cigarette lighter/12V outlet. Vehicles without function selector switch 2 -E272-, refer to CIGARETTE LIGHTER OUTLET WITHOUT FUNCTION SELECTOR SWITCH II , vehicles with function selector switch 2, refer to CIGARETTE LIGHTER OUTLET WITH FUNCTION SELECTOR SWITCH II .

Release the retaining clips -arrows-.

Remove the illumination ring -1- with the cigarette lighter illumination bulb -L28- from the center console storage compartment -2-.

Installing

Install in reverse order of removal, observing the following

Slide the lighted ring into mount until retaining clips engage.

1. The illumination ring can only be inserted in the mount in one position.

Install the cigarette lighter/12V outlet. Vehicles without function selector switch 2, refer to CIGARETTE LIGHTER OUTLET WITHOUT FUNCTION SELECTOR SWITCH II , vehicles with function selector switch 2, refer to CIGARETTE LIGHTER OUTLET WITH FUNCTION SELECTOR SWITCH II .

CIGARETTE LIGHTER MOUNT AND 12V OUTLET

Special tools and workshop equipment required

1. Pry lever 80-200

Removing

Scheme 32

Open the sun blind -2-.

Pry the mount -1- with Pry Lever 80-200 out of the center console.

Unplug connectors.

Installing

Install in reverse order of removal, observing the following

Note. The back side of the mount must be installed first in the drive direction into the center console.

SIGNAL HORN/DUAL TONE HORN, VEHICLES WITHOUT CHARGE AIR COOLER, THROUGH 05.2008

Observe notes on contact corrosion. Refer to CONTACT CORROSION .

Removing

Scheme 33

Switch off ignition and remove ignition key.

Remove the noise insulation in the center -attachments 1 through 3-.

Remove the noise insulation on the left and right sides -fasteners 1 through 3-.

Scheme 34

Disconnect electrical connector -2-.

Scheme 35

Remove the nut -1- and then remove the signal horn and dual tone horn -H1- from the bracket.

Note. The left signal horn and dual tone horn is shown in the illustration.

Installing

Install in reverse order.

Tightening Specifications

SIGNAL HORN/DUAL TONE HORN, VEHICLES WITH CHARGE AIR COOLER, THROUGH 05.2008

Observe notes on contact corrosion. Refer to CONTACT CORROSION .

Removing

Scheme 36

Air inlet grille version 1

Release the hooks -arrows- with a screwdriver and remove the air inlet grille downward and from the bumper.

Air inlet grille version 2

Scheme 37

Release retaining hooks -arrows- with a screwdriver.

Remove the air inlet grilled form the fog lamp housing and unhook the retaining tab on the bumper.

All

Scheme 38

Disconnect electrical connector -2-.

Remove the nut -1- and then remove the signal horn and dual tone horn -H1- from the bracket.

Note. The left signal horn and dual tone horn is shown in the illustration.

Installing

Install in reverse order.

Tightening Specifications

HIGH TONE AND LOW TONE HORNS, FROM 06.2008

Observe notes on contact corrosion. Refer to CONTACT CORROSION .

Removing

Scheme 39

Reach into the opening -arrow A- remove the lower air inlet grille -1- from the bumper -arrow B-.

Remove the nut -5-.

Scheme 40

Remove the low tone horn -H7- -item 3- and disconnect the connector -4-.

Disconnect the electrical connector -6-.

Remove the nut -2- and remove the high tone horn -H2- -item 1-.

Installing

Install in reverse order.

Tightening Specifications

HORN BRACKET, FROM 06.2008

Observe notes on contact corrosion. Refer to CONTACT CORROSION .

Removing

Reach into the opening -arrow A- remove the lower air inlet grille -1- from the bumper -arrow B-.

Disconnect the electrical connectors -1- and -6-.

Scheme 41

Free up the wire holder -2- on the bracket.

Remove the screws -4- and -5-.

Remove the bracket -3- and the high tone horn -H2- / -H7-.

Note. The bumper cover is removed in the illustration.

Installing

Install in reverse order.

Tightening Specifications