this is all I have that may help... 2nd-to-last page says rear camera has 2 screws once you get to it (probably don't have to remove anyway)... perhaps the removing trim panels doc helps get you there.

Attached Images

	05c2_E70 Rear-view Camera.pdf (413.3 KB, 1137 views)
	remove and install lower trim panel for rear hatch.pdf (74.3 KB, 624 views)

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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr