Makes a whistling sound when given little gas
When i give my 2006 x5 a little gas it makes an annoying whistling sound when i give it a little gas. Not when idling, or when i accelerate hard just when you push the pedal a little. I really am aggrevated by it because it is right where im always pushing the pedal. I was reading on net by other owners( before i joined bimmerfest) that it could be the pulleys. Any input?