Wheel Speed Sensor on Rear Axle
1 ABS 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
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.