Well I have recently discovered this forum and found it to be the best for X5 users. I recently purchased an X5 2003 and Love the drive. Few days back I noticed that back tire is loosing air.Took the car to the Tire Shop but they couldnot repair it due to the Lock on the wheel!. Tried to find the key every where,looked up the owners manual but no luck.Can anyone help me in this regard, where can I get the Key for the wheels?. Thanks!