33 32 131 Removing And Installing / Replacing A Steering Knuckle / Wheel Carrier
The control arm to wheel carrier connection has been changed from a conical seat to a ball seat (see illustration below).
Observe SAFETY INSTRUCTIONS on raising the vehicle.
Apply handbrake.
Remove rear wheel.
E61: Deactivate and drain air spring/suspension system
Unscrew collar nut.
Release handbrake.
Installation:
Replace collar nut, apply a light coating of oil to contact surface and tighten down.
Tightening torque: 33 41 3AZ . See WHEEL BEARINGS for specs.
Secure collar nut by 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 .
Press OUTPUT SHAFT OUT OF DRIVE FLANGE .
Remove GUIDE ARM FROM WHEEL CARRIER .
Remove UPPER CONTROL ARM FROM WHEEL CARRIER and remove 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.
Replacement:
- Modify REAR WHEEL BRAKE
- Install new WHEEL BEARING
- Modify or replace DRIVE FLANGE
- E61: Modify retainer for air spring
After installation:
- E61: Activate and fill air suspension system
- Adjust HANDBRAKE
- Perform chassis alignment check. See CHASSIS/WHEEL ALIGNMENT CHECK PROCEDURE , KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH LOAD UP TO DESIGN POSITION , or KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE-HEIGHT MEASUREMENT WITHOUT LOAD .