33 32 131 Removing and installing / replacing a steering knuckle / wheel carrier
To ensure a correct bolt connection, check before installing the control arm whether the seat for the control arm matches the seat for the wheel carrier.
A Conical seat
B Ball seat
Replacement only: Replace control arm with conical seat.
Remove rear wheel.
E61: Deactivate and drain air spring/suspension system
Release collar nut, activate handbrake for this purpose.
Installation:
Replace collar nut, oil collar nut/wheel bearing contact surface lightly and tighten down.
No oil permitted on thread of shaft journal or collar nut.
Tightening torque 33 41 3AZ .
Secure collar nut by positive peening on flat areas of output shaft.
E61: Remove air spring from wheel carrier
Remove REAR BRAKE DISK .
Disconnect HANDBRAKE BOWDEN CABLE FROM EXPANDER LOCK .
Replacement only: Drive out DRIVE FLANGE FOR REAR AXLE SHAFT .
Remove PULSE GENERATOR .
Remove STABILIZER LINK FROM STABILIZER .
Remove SPRING STRUT SHOCK ABSORBER/SHOCK ABSORBER from wheel carrier/swinging arm.
Remove INTEGRAL LINK .
Do not drive output shaft out of drive flange with an impact tool.
Press OUTPUT SHAFT OUT OF DRIVE FLANGE .
Remove GUIDE ARM FROM WHEEL CARRIER .
Remove UPPER CONTROL ARM FROM WHEEL CARRIER and remove wheel carrier.
Replacement:
- Modify REAR WHEEL BRAKE
- Install new WHEEL BEARING
- Modify or replace DRIVE FLANGE
- E61: Modify retainer for air spring
- Check sensor head and line from pulse generator prior to installation for external damage, replacing if necessary.
After installation:
- E61: Activate and fill air suspension system
- Adjust HANDBRAKE
- Perform chassis alignment check. See KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH LOAD UP TO DESIGN POSITION or KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE-HEIGHT MEASUREMENT WITHOUT LOAD .