before I take any action, to clear up.
Probably not the heater matrix cause the puddle is in the rear of the car and is only slightly damp in the front, plus my heaters work fine and my coolant level hasnt dropped.
I know its not my roof.
So probably my door? I cant imagine how that much water is getting in through there but from what I gather its the most likely problem.
Any other tell tale signs before I but a heap of stuff and dedicate time? :p