Looks like, at the point of sale.... the GTI is having bladder issues. Well, more to the point it seems not to be keeping the damp outside from getting inside. Is this a common issue, and does VW normally sort this out under warranty? At first we thought the heater unit was dribbling, but after drying out the car it's got damp front & rear floor on the passenger side (the side which usually faces the onslaught of the south westerly weather on the drive....)