Caution: A defective wheel bearing is indicated by the appearance of noise, especially when passing a sharp turn from the side of the wheel bearing, which is on the outer radius of the turn.
Withdrawal
Loosen the wheel bolts, raise the vehicle and remove the wheel.
Carefully remove the hub cap with a screwdriver or plastic hammer.
Straighten out the locking pin -arrow- of the wheel hub nuts -1- with a crosscut saw.
Install the front wheel and lower the car.
Loosen the hub nut
Attention: The nut is screwed in with a large tightening torque, therefore, when unscrewing it, the car must be with its wheels on the ground.
Remove and hang brake caliper (see section «Removal and installation of the brake caliper / brake disc of the front wheel»).
Remove brake disc (see section «Removal and installation of the brake caliper / brake disc of the front wheel»)
Press out the hub -2- with a suitable puller -3- wheels with wheel bearings.
Attention: Removed assembly (wheel hub with bearings) cannot be reinstalled.
Caution: If the bearing inner race has not been removed from the shaft, remove the protective shield. Bend the dust shield and remove the bearing race with a puller.
Installation
If removed, install a protective shield and a new dust- protective shield.
Screw the guide bush onto the axle.
Press using tool BMW 312120 on axle assembly bearing assembly.
Slightly screw on the hub nut.
Install brake disc (see section «Removal and installation of the brake caliper / brake disc of the front wheel»).
Install the brake caliper, see section «Removal and installation of the brake caliper / brake disc of the front wheel»).
Install the front wheel and lower the car.
Tighten the hub nut with a tightening torque of 290 Nm and lock. To do this, drive the tide of the nut into the groove on the axle with a drift.
Caution: Once the nut has been tightened to the correct torque, the bearing assembly cannot be reinstalled.
Install the hub cap.
Tighten wheel bolts crosswise to 110 Nm.