Gentlemen, I am currently going thorough this scenario at the moment.
This Sunday i washed my car and noticed that i have rust appearing on the L/H & R/H sills and when opening both door notice a large amount of crap building up within this area. On further inspection i notice rust also appearing on L/H & R/H front wings, after washing my car i set down do look into this further on the internet and stumbled across 2 x threads (This one and
http://www.mk5golfgti.co.uk/forum/index.php/topic,23594.0.html).
Once reading them i though that i would phone VW customer service and informed them of my situation, The lady i spoke to advised me to go to the local dealership that has a body shop and get the areas checked out.
That day i drove to the local dealership and spoke to a very nice gentleman who was fully aware of the front wing issue but had little knowledge of the sill problem. I showed him around the car and he took photos of all areas that had rust and and opened a case for me, While on the computer he showed me a document which had pictures of other cars will rust around the sills and said that the issue is not covered by the 12 yr warranty but as a good will gesture offered 50/50 settlement of the sill problem.
I told him that as they are going to cover the front wings wouldn't it be prudent to repair the sills as both jobs overlap. the salesman agreed and informed me that it will be inexpensive if VW do not agree to cover the sills.
Once home i called VW customer services again and informed them what i had done and they said they would get back to me regarding my case, 2 Hrs later i received a call from VW saying the will not cover the sill problem and the cost of my half would be £280, I said that i couldn't understand why the have refused and explained that other people have had this issue and had all work carried out FOC.
Currently i am waiting to hear back from the Case team so i would appreciate any advice that anybody could give on this to help my case.
If anybody has links to technical bulletins that they wouldn't mind forwarding would be ideal.
While i wait i am using boroscope equipment to take photos of all areas from the side and even going behind the wing guards to take pictures of all the crap collected to help my case.
Please Please help with any info my email is Phil.mcbain@gmail.com
Rgds
Phill