At a glance
Forward/backward
Pull the lever and slide the seat in the desired direction.
After releasing the lever, move the seat forward or back slightly making sure it engages properly.
Height
Pull the lever and apply your weight to the seat or lift it off, as necessary.
Backrest tilt
Pull the lever and apply your weight to the backrest or lift it off, as necessary.
Seat tilt
Pull the lever and move the seat to the desired tilt. After releasing the lever, apply your weight to the seat or lift it off to make sure the seat engages properly.
BMW X3 Service & Repair Manual > Wheel bearings: Replacing drive flange on left/right rear axle shaft
Special tools required:
34 4 000
Necessary preliminary tasks:
Remove REAR WHEEL .
If necessary, remove visual protection cap (1).
IMPORTANT: Expand anti-twist lock sufficiently to avoid damaging thread when releasing collar nut.
Activate parking brake and release collar nut.
...