My car is already 14 months old and no rust at all, you better claim warranty replacement, that is not normal.....do you live by the sea ?

My original (factory) rotors on my 2003 X5 had slight surface rust on the hat, not enough for me to paint them, but noticable. I bought replacement rotors from the dealer when I did a brake job, and they had a much better coating on the hat, with no visible rust after the same km as the first set.

Aluminum paint for rotors/discs
 

Hi everybody,
Although I never had corrosion problems with brake calipers, rotors or brake discs on all my cars (no matter what brand) quickly started to rust. These are made from steel and bound to rust eventually. One recipe against that is to paint them with ALUMINUM paint. The earlier the better! Ideally, dismount the wheels while the car is still new and apply the paint before the corrosion process has started. Even after some rust has built up this method still works well. The advantage of Al-paint is that it is extremely heat resistant (one can use it for stoves) and needs to be applied only ONCE. Its acts a bit like zinc coating on iron. After years of car use I never had to repaint these parts. Besides that, it's cheap.
Cheers,
MTomTom.

I sense this is a problem in newer cars, production cost cutting? Regardless, took my car to my tire shop. They went all the way down to taking the rotors off, cleaning both calipers and hubs of rotors and even the shield behind the rotors and giving all three coats of paint. Cost $250. Should I send the bill to BMW?

Not a great picture but perhaps it helps.


http://i460.photobucket.com/albums/q...s/CIMG1583.jpg