31 21 090 Replacing left/right swivel bearing

WARNING: This page is about a different variant/trim than selected.

Special tools required:

Necessary preliminary tasks

IMPORTANT: Check sensor head and line from pulse sensor prior to installation for external damage, replacing if necessary.

If necessary, remove jointed rod of ride height sensor from wishbone.

Fig 1: Locating Wishbone Ride Height Sensor Jointed Rod

Courtesy of BMW OF NORTH AMERICA, INC.

Slacken WISHBONE BOLT CONNECTION ON FRONT AXLE SUPPORT in order to prevent wishbone rubber mount from being overelongated.

WARNING: Risk of injury!
Tension strut is under tension.

Support swivel bearing with workshop jack and a suitable mounting.

Release nut (1), remove holder (2) and remove screw.

Installation:

Screw head must point in direction of travel.

Replace self-locking nut.

Tightening torque 31 31 3AZ .

Fig 2: Removing Swivel Bearing Nut, Screw And Holder

Courtesy of BMW OF NORTH AMERICA, INC.

Expand swivel bearing with special tool 31 2 230 .

Lower workshop jack and remove swivel bearing.

Installation:

Keep press fit of swivel gearing and spring strut in lower area clean and free from oil and grease.

Fig 3: Expanding Swivel Bearing Using Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Expand swivel bearing with special tool 31 2 230 , align by way of gap to positioning pins (1) on back of spring strut and raise up to stop.

Fig 4: Aligning Swivel Bearing Using Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure swivel bearing contacts stop (1) correctly.

Fig 5: Identifying Swivel Bearing Contact Stop

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement

After installation: