Controversial & Contradictive
Take it to a dealer, it will be covered by warranty. They have something like a 15 year corrosion warranty, and if there's no chipped paint there, they'll replace it. I had it on my previous A4, and the dealer tried to blame it on stone chips, but the paint wasn't broken, just bubbling from under the paint, they replaced it foc.
53 A4 2.5TDi Quattro Sport 180 Tiptronic. Heated Buffalino leather, DVD Sat Nav RNS-E, TV, Bluetooth, 6 cd, BOSE, Colour DIS, Cruise Control, Auto lights and mirrors, Interior light pack, Heated mirrors.