Sorry you're getting stupid answers rather than real help here Andre.
Lighten up... its just a bit of fun and banter which is why this forum is so good. If you take these kinds of things too seriously then you need to go to Club GTI. On a more serious note though, we have tried to help, but I reckon this is probably a design flaw in the Mk5 Golf as every GTI/R32 I have had has the same problem... a bit like the water that wets your seat when you open the door after its been raining.

The only solution I have is to turn on the aircon full blast.