So my dealer says this is somewhat a common occurence as the temperature changes colder. I had *something* rip up the sound insulation on the bottom of my hood and stuffed in various places in the engine bay. Easily fixed, but apparently it also chewed up a couple wires next to the O2 sensor all the way at the bottom (where it gets in). Anyone with a similar story to share? I'm just worried it will be a frequent/repeat occurence as we never found what it was. I don't have a garage here now.

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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