X5 Sharp Whistle Noise from the engine

[fernor]

I have a BMW X5 2001 3.0, with a problem such as a sharp whistle noise that occurs only when I press the accelerator pedal at any speed, however, if I pressed the pedal further in or not touched at all the noise goes away, it happens also in reverse. Could someone suggest what it may be the problem, your help will be appreciated?

[asawadude]

Hope this helps:

http://www.xoutpost.com/x5-e53-forum/...histling+noise

[fernor]

My friend, I found the problem nevertheless, all the x5 have the same problem which is a crack on the air intake elbow which is the one that connects to the engine. The Rubber Elbow part cost $15.00 dollars at the dealer and will take you about 30 minutes to replaced if is your first time, all you need is a small socket and a screw driver handle to reach the clamps which are only two. I hope this will solve your problem as it did mine. In addition, when I first noticed the noice I took the car to the dealer and they told me that it was normal to have that noise, however, I do not have that noise anymore.