Wow! I haven't been on lately and just found this post. My 08 4.8i has had these problems since new. It is my wife's car, so I only notice it when I drive it on occassion. It iritates me whenever I drive her car, but I have just put up with it. The car is due for a one year oil change, so I found these at just the right time. Hopefully these SIB's will cure the problem.

Great Board!!

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2008 X5 4.8i, Premium Pkg, Sport Pkg, Climate Pkg, Technology Pkg, Auto Liftgate, Sat Radio, Heated Seats, Ipod Adapter.

2004 525i, Prem. Pkg, xenons, bluetooth.

Retired: 2006 X5 4.4i, Premium Pkg, Sport Pkg, Cold Weather Pkg, Climate Pkg, Upgraded Sound Pkg, Navigation, 19" Star Wheels