here's some instructions found in this thread (no pictures)
http://www.xoutpost.com/x5-e53-forum/...=lock+actuator
here's some instructions how to get into the door with pictures
http://www.xoutpost.com/articles/x5/e...nt-bmw-x5.html
and here's some schetch what it looks like
http://www.realoem.com/bmw/showparts...28&hg=41&fg=40