Note that you have an air duct through the bottom of the doors, that takes air from the blower into the rear cabin, you may / should have a small blue coloured slider on the inside rear of the front doors, that opens and closes the outlet from the door. Westy camper has one door like this, the other has a different arrangment on the sliding door side (offside as Westy is left-hand drive)
OK, here it is from Bentley:
check and adjust the fit of the door first, panel gap all round.
check fit of door seal at area over the window guide, the area shown is the top 6" before the door angles down to the quarter light, and the 6" down the door frame over the quarter light.
check for secure fit of quarter light, if you have opening q/lights
check overlap of the window guide seal and the window channel, top corner area where the window winds up to, the corners each side.
door retaining metal strap, should have a rubber seal round it.
door seal where the speaker cables etc come through from the body to the door interior, foam rubber seal there.
window winder seal to the door card.
remove door card and check the plastic film cover for holes.
Enjoy
