Sorry for resurrecting an old thread but I have just had this very same problem - air con stopped blowing cold air so booked into VW for their Air Con Service for £65 and crossed my fingers as I'm now out of warranty!!!
VW guy comes back after 30/40 mins and says it the compresser and its not cheap !! in fact £1022 not cheap!
I mention this is a known problem - no it isnt he replies - I then hit him with the TSB I saw mentioned on the very thread.
He looks something up on his screen and acknowledges it is a known problem on all pre 2008 models - he then disappears for 5 mins - he then comes back with the news that he may get a VW contribution as its a known problem - great I think.
He then asks when it was last serviced - I say a couple of months ago by an Independent Specialist - but a FVWSH whilst under warranty - in that case he says the VW contribution offer no longer applies !!! WTF!
So does anyone know where I can resolve this and get my air con up and running without a remortgage!!!