Wheel Speed Sensor on Rear Axle

ABS System Components On Rear Axle, Removing And Installing
1. All wheel speed sensor Before inserting sensor, clean mounting hole inner surface and coat with lubricant G 000 650
2. Hex socket head bolt, 8 Nm (70 inch lbs.)
3. Stub axle
4. Splash shield
5. Wheel hub with wheel bearing and speed sensor rotor
^ Replace each time after disassembly
^ Only replace complete
^ Removing and installing refer to Transmission and Drivetrain; Drive Axles, Bearings and Joints.
6. Self-locking 12-point nut, 175 Nm (129 ft. lbs.). Replace each time after removing
7. Cap
^ Pressing off and driving in.
8. Brake disc
9. Screw
10. Hex bolt, 60 Nm (44 ft. lbs.)
^ With dished spring
11. Axle beam

Wheel Speed Sensor On Rear Axle, Removing And Installing

Removing
- Raise vehicle.





- Disconnect wheel speed sensor and speed sensor wiring connector -1-.
- Remove bolt -2- from stub axle.
- Pull ABS wheel speed sensor out of stub axle.

Installing
- Before inserting wheel speed sensor, clean mounting hole inner surface and coat speed sensor with lubricant G 000 650.
- Insert wheel speed sensor into hole in stub axle and tighten bolt to 8 Nm (70 inch lbs.).
- Connect wheel speed sensor to speed sensor wiring.

Wheel Speed Sensor On Rear Axle (Drum Brakes), Removing And Installing

Removing
- Raise vehicle.





- Disconnect wheel speed sensor and speed sensor wiring connector -1-.
- Remove bolt -2- from stub axle.
- Pull ABS wheel speed sensor out of stub axle.

Installing
- Before inserting speed sensor, clean mounting hole inner surface and coat speed sensor with lubricant G 000 650.
- Insert speed sensor into hole in stub axle and tighten bolt to 8 Nm (70 inch lbs.).
- Connect speed sensor to speed sensor wiring.

ABS Wheel Speed Sensor Wiring To Rear Axle, Removing And Installing

Required Special Tools





^ VAS 1978 Wiring harness repair set

Removing
- Obtain radio code on vehicles with coded radio.
- Disconnect battery
- Disconnect wheel speed sensor wiring connector.
- Remove rear interior side panel trim.





- Strip insulation (arrow) from shrink connection.
- Cut speed sensor wiring in front of spliced connection with stripping pliers from VAS 1978 wiring repair kit and remove faulty wiring.





- Strip insulation at wiring end by 15 mm (5/8 inch) using stripping pliers from repair kit and fold over stripped wire portion.
- install new speed sensor wiring.
- Connect wheel speed sensor to speed sensor wiring.





- Secure wheel speed sensor wire (arrows).

Note:
^ Do not twist wires in the wheel well.

- Cut 2-pin connector at new speed sensor wire (if installed) using stripping pliers from repair kit.
- Strip 15 mm (5/8 inch) insulation off wire end and fold over stripped wire.
- Connect wheel speed sensor wire using correct connector from wiring repair kit VAS 1978.