When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
It is cosmetic. My non-MINI's don't have that coating and that part often has rust on the surface. The peeling of the protective coating will not interfere with the function of the brakes, IMO.
Mine looks a lot worse than that, and I just got the car. If I take it back to the dealer, can they re-coat them? I've just tried to ignore it, but if it is supposed to look much better than that, I want something done about it.