Moving Windlass:

WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Before moving windlass, remove reversible ratchet, extension and parabolic tool
Release sucker on windlass
Pull and hold black locking button (1)
Turn windlass and move with sucker
Refit reversible ratchet, parabolic tool and if necessary extension
When cutting the corner points, make sure the wire is situated in the guide channel of the windlass; this makes the cutting job easier

Fig 1: Holding Black Locking Button
Courtesy of BMW OF NORTH AMERICA, INC.