One other factor is the amount of gadgetry in this thing. You're taking a risk by buying into it in the first place, then as others mentioned - first year run at that. I wouldn't be the least bit surprised if you go to a 911 without even half the technology you've mentioned and never have a problem.

Still, it is/was BMW's responsibility to fix the issues and they've failed to right many wrongs in your case. Good luck.

__________________
'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