Hi,
I know it seems strange that it could come through via the door, but I've had the the doorcard off and the plastic out and I can see the water running through - the carpet gets wet exactly at the point where the water comes down through the door. It then runs directly in to the battery compartment.
I've yet to find the time to fit the window scraper, but hoping to do it in the next few hours - and yes, the rubber around that window is cracked, has some moss in it and is OLD!
I have a tin top but have two badly fitted vents. The front is a sunroof which may have been factory fitted or not? Not sure, its a 1990 Caravelle. The second is a badly fitted and badly placed air vent which I've recently refitted (with help!) and resealed and is now completely water tight. The sunroof actually leaks and I thought the leak was coming from there - but Im really quite sure its not now.
Orangebooboobearcrew (what a name!) - you're the only other person who has said that they have water in their battery compartment! Im pretty sure the window winds completely to the top. The sliding door is the other side (RHD).
Leaking cab door seal is interesting - although like I say, I can physically see the water running through the door, but like Oldiebutgoodie said, its designed to run through and run out of the vent...so Im not sure whats going on
