Originally Posted by BrandonMarkelW
I had the same problem as those above and so i tried the steel wool yesterday the 0000 grade and it RUINED the finish on my 2008 335i tips. I have the dull finish on mine so maybe they changed it after 2008 but please BEWARE with the steel wool. just do a test spot first down under the tip. You dont want to end up with scratched tips........
Yea steel wool is not a good idea. If you want to take a conservative approach some simple rubbing compound with a rag would be better, followed up with a metal polish and buff.