ABS System Components For Rear Axle, (Front Wheel Drive) Removing and Installing

ABS system components for rear axle, (Front wheel drive) removing and installing





1- ABS speed sensor
^ Checked by On Board Diagnostic (OBD)
^ Before inserting sensor, clean mounting hole inner surface and coat with lubricating paste G 000 650
2- Hex socket head bolt, 8 Nm (71 in lb)
3- Stub axle
4- Splash plate
5- Wheel hub with wheel bearing and rotor
^ Replace each time after removing
^ Only replace complete





6- Self-locking 12-point nut, 175 Nm (129 ft. lb)
^ Always replace
7- Cap
8- Brake disc
9- Phillips-head screw





10- Hex bolt 60 Nm (44 ft. lb)
^ With dished spring
11- Brake drum (not used)
^ Brake drum diameter 230 mm (9.06 in.)
^ Wear limit 231 mm (9.09 in.)
^ Release adjustment before removing brake drum
^ Clean thoroughly, check for wear, damage, tolerances, damaged wheel bolt threads and perfect braking surface
12- Back plate with brake shoes
13- Axle beam

Speed sensor on rear axle (front wheel drive), removing and installing

Removing
- Raise vehicle.





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

Installing
- Before inserting speed sensor, clean mounting hole inner surface and coat speed sensor with solid lubricant paste G 000 650.
- Insert speed sensor into hole in stub axle and tighten bolt to 8 Nm (71 in. lb)
- Connect speed sensor to speed sensor wiring.

Rear speed sensor wiring (front wheel drive), removing and installing

Special tools and equipment





^ VAS 1978 Wiring harness repair kit

Removing:
- Obtain radio code on vehicles with coded radio.
- Disconnect battery.
- Disconnect speed sensor wiring/speed sensor connection.
- Remove rear side panel trim.





- Disconnect speed sensor wiring (arrow) with wire strippers from VAS 1978 and remove faulty wiring.





- Strip 15 mm (5/8 in.) of insulation from end of wire with wire stripper and fold half of stripped wire back.
- Guide in new speed sensor wiring.
- Connect speed sensor to speed sensor wiring.





- Clip in speed sensor wiring (arrow).
Make sure the wiring is not twisted when installing the speed sensor wiring in the wheel housing.
- Cut 2-pin connector off new speed sensor wiring with wire stripper pliers.
- Strip 15 mm (5/8 in.) of insulation from end of wire with wire strippers and bend back half.
- Connect speed sensor wiring with aid of suitable crimp connector from wiring harness repair set VAS 1978.