^ actually if the key is inside the vehicle the door handles won't respond to the unlock/lock actions. Try a car wash in your driveway... leave the keys inside the cabin... touch the door handles all you want, it won't respond. Now take them out and even spraying water on the door handles will make it go nuts.

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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