31 21 180 Replacing bearings (wheel hub) for front wheel (RWD, including M6)

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IMPORTANT: There are/will be wheel bearings installed with a thread pitch of 1.5 mm or 1.25 mm (screw connection of wheel bearing on swivel bearing):

Make sure the allocation of the wheel bearing/screws is correct!
If applicable, check the thread pitch with a thread gauge.
Make sure that the torque allocation of the wheel bearing on the swivel bearing is correct!

Necessary preliminary work:

Remove brake disc. See procedure for applicable vehicle in FRONT BRAKES .

NOTE:

Check brake pads and replace if necessary. See procedure for applicable vehicle in FRONT BRAKES .

Slacken nut (1).

Tightening torque 31 12 2AZ .

Remove trailing link (2) from swivel bearing (3).

Fig 1: Identifying Trailing Link, Swivel Bearing And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and remove mount.

Tightening torque 31 21 1AZ .

Fig 2: Identifying Mount Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Replace screws.

Keep threaded holes (1) clean and free from grease.

Keep contact surface (2) of wheel bearing and swivel bearing clean and free from grease.

Fig 3: Installing Wheel Hub

Courtesy of BMW OF NORTH AMERICA, INC.