I use a BMW Wheel Dust spray, which you leave on for 5-10 minutes and loosens brake dust. I also use this on the exhaust and it works pretty well. I use a product called Silvo (silver polish) on the exhaust every month or so to remove stubborn carbon build up on the exhaust pipes.
I also have the BMW Wheel Brush set, which definitely helps in getting dust off in harder to reach places...
Your BMW SA should sell the BMW stuff...
|