Originally Posted by xit2050
I have the same problem with my current E90.
However, I just bought a bottle of Iron X which is supposed to work miracles on wheels (it does smell disgusting). Going to try it out very soon.
Don't mean to hijack this thread. But I suspect the issue of brake dust on wheels and trying to keep them clean is a major ordeal for most BMW owners. I for one would be very interested in knowing how Iron x works. Maybe you could start a separate thread and keep us posted on the results. Inquiring minds want to know.