Front speed sensor wiring, removing and installing
WARNING: This page is about a different variant/trim than selected.
Special tools and equipment
- VAS 1978 Wiring harness repair set
Removing:
- Obtain radio code on vehicles with coded radio.
- Disconnect battery.
- Release control module connector (arrow -1-) and pull off (arrow -2-).
- Release multi-pin connector cover cap with a screwdriver and remove.
- Release secondary locking device (violet) in direction of arrow with a screwdriver.
Contact assignment of connector T47 wiring harness/ABS control module (w/EDL) -J104-.
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations binder
- Push out relevant contacts with an ejection tool from wiring harness repair kit VAS 1978.
- Separate connector from speed sensor wiring and speed sensor.
- For vehicles with brake wear indicator separate connector -1-.
- Unclip the wiring from retainer -2-.
- Remove faulty speed sensor wiring and guide in new speed sensor wiring.
- Connect speed sensor to speed sensor wiring.
- Clip in speed sensor wiring (arrows).
Make sure the wiring is not twisted when installing the speed sensor wiring in the wheel housing.
- Insert brake wear indicator connector into bracket on suspension strut.
- 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.
Special tools and equipment
- VAS 1978 Wiring harness repair set
Removing
- Obtain radio code on vehicles with coded radio.
- Disconnect battery.
- Release control unit connector (arrow -1-) and pull off (arrow -2-).
- Release multi-pin connector cover cap with a screwdriver and remove.
- Release secondary locking device (violet) in direction of arrow with a screwdriver.
Contact assignment of connector T47 wiring harness/ ABS Control Module (w/EDL) -J104-
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations
- Push out relevant contacts with an ejection tool from wiring harness repair kit VAS 1978.
- Separate connector from speed sensor wiring and speed sensor.
- For vehicles with brake wear indicator separate connector -1-.
- Unclip the wiring from retainer -2-.
- Remove faulty speed sensor wiring and guide in new speed sensor wiring.
- Connect speed sensor to speed sensor wiring.
- Clip in speed sensor wiring (arrows).
Make sure the wiring is not twisted when installing the speed sensor wiring in the wheel housing.
- Insert brake wear indicator connector into bracket on suspension strut.
- 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.