I have done a search on squeaking noise but I didn't find anything helpful. If you know a link to a previous thread, please feel free to point me there.
I have a 2003 330 Ci (5 spd) with 13,700 miles on it. The interior is leatherette and I have sports package with it. This morning when I drove the car to work, I noticed an unusual amount of squeaking come from the back. The road that I was driving was "normal" - bumps here and there, but nothing dramatic like pot holes. Nonetheless, I feel like there are birds chirping behind the rear passenger seat every time I ran into the slightest bump.
Now I know that sports package makes the ride rougher, but I don't think the chirping sound is part of that. Also, at the time, the outside temperature was 36 F and I started driving the car once the rpm dropped below 1000 rpm (about 20 secs after the car had started).
Any wisdom from you all BMW fans would be appreciated.