Originally Posted by
rainman
Hi Dave,
I've recently bought a 130 DC TDi that has basically the same problem - parked in a certain position in the rain and you get a torrent onto your foot as you move off. I haven't bothered to look into it yet either because I'm about to pretty much rip the whole cab apart to replace all of the seals, do some rust repairs, and install insulation and electrics.
My first guess is going to be the fact that the driver's side vent flap arm is broken so there is no pressure holding it closed tight against the rubber. Perhaps check that your rubber is in tact, or even that you're closing the vent fully. It's easy to "latch" it on the second last position so it isn't quite closed. More often than not you'll get a wind whistle at speed to alert you to this though.
Don't know, just a suggestion. ;)