Thanks for the quick reply mate. I read the handbook and spoke to dealer. Double clicking when locking actually disables the safe locking (dead locking system). If you hold the key fob on the open button, it lowers all windows and similarly if you hold down the lock button, it closes any windows that are open. Dealer suggested that I may have held the open button down too long, but I doubt this. Dealer said that the global opening/closing can be adjusted or switched off altogether, but I am reluctant to do this. I have looked on the web and it appears to be a common problem on older VAG group cars, but not so much on MK6's.