I've gone to the car in the morning and on two recent occasions, 2 or 3 of the windows (It's a 5 door), have been open about 2 inches. No damage to the lock and the car is in a gated and CCTV'd parking croft with secuirty (so unlikey to have been tampered with).
Any thoughts on what could be causing this or is it a trip to VW?
Thanks