I have a 1994 325I with what I was told is a M3 Suspension. I recently replaced the rear Shocks and mounts and the front Struts and Mounts. Before I replaced all that I had some sporadic squeaking that sounds like it is coming from the doors when ever I hit a large bump. Now I get that sound much more often.
Any Ideas..... It sounds like doors or something like that not necessarily coming from the front or rear like struts or shocks....