Alloy Wheel corrosion at 3 months old??

[daemon]

I've a 2010 Passat Bluemotion which has the polished aluminium / lacquered alloy wheels.

The car has just turned three months old and on friday i noticed the tell tale whiteness on the rear offside alloy wheel of corrosion - a spot about the size of a five pence piece.

I took the car to the VW dealer and they've ordered me a new rim, but have i just been exceptionally unlucky and got a 'faulty' wheel OR is this what i'm going to be up against with these rims?

I know the regular alloys that are sprayed silver are fine, but these lacquered types seem to be a nightmare?

[kilarney]

Diamond cut then stone chip to the lacquer on a salty road and the wheel is corroded. So yes next winter it will likley happen again

[Dr G]

Or as soon as the replacement picks up a stone chip. Ditto for any polished metal unfortunately