31 21 090 Replacing left/right swivel bearing
Special tools required:
- 31 2 230
These swivel bearings with camber correction are used to correct the camber values by ±30 min. To be used only if the camber tolerance values are exceeded and undershot.
Attention!
On the M135i and M235i the camber correction of -30 min for the swivel bearing is standard status for production vehicles.
Identification is made at the PART NUMBER ON SWIVEL BEARING .
Necessary preliminary tasks:
- Remove the FRONT BRAKE DISCS , and/or REAR BRAKE DISCS .
- Remove the PULSE GENERATOR FROM SWIVEL BEARING .
Attention!
Prior to installation, check sensor head and cable from pulse sensor and replace if necessary.
Only on ride-height sensor at left:
Release link at wishbone.
Slacken the WISHBONE SCREW CONNECTION ON FRONT AXLE SUPPORT IN ORDER TO PREVENT WISHBONE RUBBER MOUNT from being damaged.
Remove the WISHBONE FROM SWIVEL BEARING .
Remove the TRACK ROD END FROM SWIVEL BEARING .
Remove the TENSION STRUT FROM SWIVEL BEARING .
Support swivel bearing with universal jack and suitable fixture.
Slacken nut (1).
Tightening torque, refer to: 31 31 3AZ
Take off holder (2).
Pull out screw.
Installation note:
Replace nut (1).
Bolt head points in direction of travel.
Expand swivel bearing with special tool 31 2 230 .
Lower universal jack and remove swivel bearing.
Installation note:
Keep connection between spring strut and swivel bearing clean and free from oil and grease.
Installation note:
Expand swivel bearing with special tool 31 2 230 .
Alight gap on swivel bearing (1) to positioning pin (2) on spring strut.
Slide on swivel bearing to limit position.
- Remount the WHEEL BEARING or replace if necessary.
- Remount the BRAKE GUARD PLATE or replace if necessary.
After installation:
- Carry out WHEEL ALIGNMENT PROCEDURE .