One of my wheels around the "bmw" badge cap has started oxidising, car is an 09 plate with 14K on the clock, wheels were fitted by the dealer I bought the car from in 2010 so they are only 2years old and have only covered around 6000miles, always used either just soap or billbery PH neutral wheel cleaner so not like it's "wonder wheels" damage.
I think BMW only have a 2 year anti-corrosion policy on wheels, but has anyone had simmilar problem with the 313's and went to the dealer about it? I know they are diamond cut and thus it's only a matter of time before they start to go downhill but for the mileage they've done, the care i've taken to keep them good i'd have thought they might last a bit longer!
