I've been dealing with this noise for over a year now (whining noise under acceleration). Every time I have brought it to the dealer's attention (Center BMW, Van Nuys, CA), they have told me that it was normal. I even had the shop foreman drive around with me until he heard it. He still said it was normal of all X5s. It may be a common problem, but it sure as hell isn't "normal." I've heard it on several 3.0 X5's around town as well, so it is very common. Let's see if this Tech Bulletin gets me anywhere with my dealer. It's going to be interesting since I'm now on my extended warranty. I'll keep you all posted on what happens. I hope you all do the same.

It's that whining noise under acceleration.

__________________

'01 BMW X5 3.0i