Reviving this thread. I never had the dealer look at it because I'm sure they won't be able to replicate it since it rarely happens.

It happened again twice consecutively last night. By consecutively, I mean that usually an engine shut-off/restart will fix it, but this time it didn't. Have comfort access, so I turned off the computer completely by pushing the shut-off button twice and then it was able to shift to R after the 3rd engine start.

Is there an SIB on this? Anyone else experience this? Computer glitch or impending transmission issue?

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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