I am currently driving an 07 3.0TDI, new model Touareg and recently I have noticed a sloshing sound on acceleration or braking hard, coming from somewhere in the drivers door, drivers pillar or roof area, whichever it is only in the drivers side, the passenger side seems fine, I have looked everywhere for any point of ingress of water or blocked gutters, can find nothing, it is not in the doors, open and shake does not replicate the noise, I even though it might be related to a full or par full tank, sadly not. At this stage it is driving me mad, any thoughts or similar experiences would be greatly appreciated. It does have roof bars mounted, running from front to rear, factory fitted so not sure if this is an issue.