Front

Wheel speed sensor wire, replacing

Note: Always use repair kit VAS 1978 for repairs on wiring harnesses and connectors.

Special tools and equipment
- Wiring harness repair kit VAS 1978

Removing






- Remove screws (arrows).

- Remove forward left-hand cover panel.






- If installed, disconnect secondary air intake hose -1- from air cleaner.

- Disconnect air hose -2- from mass air flow sensor.

- Unplug connector -3- from mass air flow sensor.

- Remove bolts -4- and -5-.

- Remove air cleaner housing.






- Release control module connector (arrow -1-) and unplug (arrow -2-).






- Loosen and remove cap of multi-pin connector using a screwdriver.






- Disengage secondary engagement device (violet) in direction of (arrow) using small screwdriver.






Contact assignment of 47-pin connector on ABS control module (w/EDL) -J104-






- Using a suitable ejector tool from wiring repair kit VAS 1978, push out the relevant contacts.






- Unplug brake wear indicator connector -1- on left brake.

- Unclip wiring from bracket -2-.

- Release connector on wheel speed sensor and disconnect wiring.

- Remove defective wiring for wheel speed sensor.

Installing

Install in reverse sequence; note the following points:

- Run in new wheel speed sensor wiring.






- Clip in speed sensor wiring (arrows).

Note: Make sure sensor wire is not twisted in wheel housing.

- Guide contacts into connector housing.






- Push individual wiring seals in onto stop with an insertion tool from VAS 1978.

- Secure contacts with secondary locking device and install multi-pin connector cover cap.

Tightening torque
Air cleaning housing 10 Nm