are these of any help and/or relevant?
http://www.bimmerforums.co.uk/forum/f91 ... 0d-t15943/
http://www.bmwland.co.uk/forums/viewtop ... 4&t=143748
That jubilee clip on the left looks a monkey, is it attached in anway or a special type as it hold 2 pieces of metal together?
More to the point could it drop off and potentially never be rescued?

Me thinks some spare screws would be needed just in case too :-[