Hi,
Just joined the forum and would like to relate my recent experience with this colloquially named 'wing edge corrosion'
I own a 2007 Gti and recently noticed paint bubbling around the edges of both front wings and after looking on line found that this was a common issue with all mk 5 cars and was well known to VW.
Naively thinking that a repair was now a formality under the 12 year anti corrosion warranty , I contacted my local VW dealer to book car in for inspection and repair.
Initially the dealer would not even inspect the car as it was 11 years old and gave me some waffle about the corrosion was not actually corrosion but was a mechanical issue?
Next call was to VW customer care who eventually managed to get the dealer to take the car in.
After checking paint thicknesses around the bodywork they then made an offer to replace and repaint both front wings providing I contributed 75% of the cost. VW consider this to be a gesture of goodwill ?