My E46 (02 330xi) has a shimmy in the steering wheel. It is most
noticable after I heat up the rotors. And if I heat them up a BUNCH,
the shimmy is VERY noticable, almost to the point of wobble. After a
couple of 80 mph down to 20 mph braking sessions (and yes, I checked my
mirrors), the rotors are almost smoking.
My guess is that I have warped rotors and they need to be replaced. I
have drilled Zimmerman rotors on the car and they're a little over a
year old so I didn't expect them to warp so soon (or at all, for that
matter, but hey, stuff happens).
Any ideas of what could cause the shimmy problem besides warped rotors?
Does something else heat up after some serious braking that would cause
the shimmy? Something besides rotors?
Hopefully it turns out to be some type of $5 bushing or something cheap,
but I bet I'm buying new rotors.
Thanks for any advice.