Removing the front hub and bearing assembly renders it unusable. Reassembly will require a new assembly.
Withdrawal
1. Loosen the wheel bolts, then jack up the front of the car and place it securely on the axle stands. Loosen the wheel bolts and remove the wheel.
2. Use a hammer and chisel to remove the dust cap from the hub.
3. Loosen the hub nut.
4. Install the wheel and lower the vehicle to the ground. Loosen but do not remove the hub nut.
Always loosen and tighten the hub nut only with the vehicle on the ground. The force required to loosen this nut (which is very tight), can knock the car off the axle supports.
5. Jack up the front of the vehicle and place it securely on axle stands. Remove the front wheel again.
6. Remove the front brake caliper and its mounting bracket (see chapter Brake system). The brake hose does not need to be disconnected. Hang the caliper to the side on a piece of wire so that it does not interfere with work.
7. Remove the brake disc (see chapter Brake system).
8. Loosen the hub nut and pull the hub and bearing assembly off the stub axle. If she has become attached, you can knock her out.
9. If the inner race of the bearing remains on the stub axle (it happens sometimes), remove the dust cover behind the bearing and use a puller to remove the inner race.
Installation
1. Install a new dust cover.
2. Push the new hub and bearing onto the stub axle. If force is needed, apply pressure only to the inner race of the bearing.
3. Fit a new hub nut and tighten it with your fingers for now.
4. Install the brake disc, its countersunk mounting screw and the brake caliper (see chapter Brake system).
5. Install the wheel and lower the vehicle to the ground.
6. Tighten the hub nut to the required torque. Remember to do this with the vehicle lowered to the ground and not on axle stands.
7. Jack up the front of the car and place it securely on axle stands. Remove the wheel.
8. Insert the collar of the nut into the groove on the axle.
9. Apply a suitable sealant to the new dust cap and fit the cap using a soft-faced mallet.
10. Install the wheel and wheel bolts. Lower the vehicle to the ground and tighten the wheel bolts to the specified torque.