I did have a leak on both sides, but sealing the vent scuttle plastic thing where it meets the vent fixed that.
I sealed the windscreen up three times assuming it was coming in here, but it did nothing.
I traced the driver side leak to this bit behind the dashboard - I've sealed the aerial holes up behind the aerial, the drains are all clear. I can't figure out where it is coming from, if there are physically no more holes in the body.
It's a 1984 SK410 Van, so the vent is on the side (not the centre). Like I said originally, 'suddenly' in that it only started last year sometime. Where else can water get in?
