Front

REMOVAL
1. Loosen the hub center nut slightly when the car is standing on all four wheels.
2. Lift the car. If a jack is used then the car should be mounted on axle stands.
3. Remove the wheel.
4. Remove the hub center nut.
5. Remove the brake caliper as follows:
a. Press the brake piston back with a pair of grips.
b. Unfasten the two bolts securing the brake caliper to the steering swivel member.
c. Hang the brake caliper from a spring with a suitable steel wire or cable tie.
6. Remove the locating stud and brake disc securing bolts. Lift off the brake disc.
7. On cars with ABS brakes the ABS sensor securing bolts should be lifted up.
8. Remove the four screws securing the hub to the steering swivel member!.
9. Pull off the hub from the drive shaft with puller part No. 87 91 287 and puller jackscrew part No. 87 91 303 and remove the disc back-plate.
10. Remove the hub and disc back-plate.





INSTALLATION
1. Clean and de-grease the drive shaft and hub.
2. Unfasten the two steering swivel member bolts from the spring. Move the steering swivel member out of the way so it is possible to tighten the hub securing bolt.
3. Re-fit the disc back-plate and hub.
4. Tighten the four bolts securing the hub to the steering swivel member.
Tightening torque: 57 Nm (42 ft. lbs.)
5. Apply Loctite 641 approximately. 10 mm in and around the spline joint on the shaft, see picture.
6. Hold the outboard universal joint and fit the spline joint on the shaft in the hub and re-fit the two steering swivel member bolts to the MacPherson strut. The nuts should sit forwards. Use new nuts.
Tightening torque: 91 Nm (67 ft. lbs.)





7. Fit the brake disc, locating stud and bolt.
8. Fit the brake unit and install the flexible hose in its mounting on the MacPherson strut. If necessary, fit the ABS sensor.
Tightening torque for brake unit securing bolts: 90 Nm (66 ft. lbs.)
9. Fit a new hub center nut.

IMPORTANT: New hub center nuts should always be fitted if the nut has been unfastened, because the clamping force of the locking device is reduced after re-fitting.

10. Replace the wheel and lower the car. Tighten the wheel nuts.
Tightening torques for the wheel studs: 120 Nm (89 ft. lbs.)
11. Tighten the hub center nut.
Tightening torque for hub center nut: 290 Nm (214 ft. lbs.)

IMPORTANT: Press out the brake pads with the brake pedal. The glue (Loctite 641) should be allowed to dry for 1 hour before the car is driven.