Funny, I was just considering posting a topic about the mk6 doors. 2 weeks ago I cleaned the car with one of these spray on, rub off gizmos from the shopping channel. The car looked great but when I pulled off the drive i could hear movement in the rear doors. Took it into VW and they put some moisturizing stuff (apparently £49 a bottle) on the door rubbers and hey presto the noise/apparent door movement has gone. Initially I thought it was the locks as there seemed to be so much movement on the doors