I was told specifically that there are three versions of the TPM sensor for the 2010/2011 model. The latest one came out with X5s built on or after October 10th, 2010. I have my dealership researching it. My car entered production on October 13th. So I will let you all know the specifics on Monday.

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2011 X5 5.0i, Sparkling Bronze, Premium, Sport, Technology, Winter, Premium Sound, Comfort Access,Heated Rear Seats, Rear Climate, Running Boards, Smartphone/Bluetooth package, 20" wheels