Hi i have a 2001 525i and as i'm driving down the road i hear a noise that sounds like something is spinning and hitting something. it's sounds like a whoop whopp whopp whoop. The sound becomes very noticeable when i make a left or right turn. This was happening piror to me changing the 4 pads and rotors. I'm not exactly sure where to start looking. At times it sounds like it's coming from the front but I can't tell. Any ideas where to start looking?
Thanks
Jason
2001 525i 129,000 Highway Miles