Remove sealing lips at marked points.
Unclip line and water hose (1) from cover (3).
Unlock retaining lug (2).
Feed out cover (3).
Cover tabs (1) must snap in correctly under cowl panel.
BMW X3 Service & Repair Manual > Mechanical steering gear: Replacing gaiter for steering box on left or right
IMPORTANT:
The hydraulic steering gear must be replaced if the polished surface of the rack is damaged
(e.g. by corrosion)!
Necessary preliminary tasks:
Remove UNDERBODY PROTECTION .
Remove TRACK ROD END.
Clean track rod.
Release band clamp (1) and EAR CLIP (3).
Detach gaite ...