
Today I've been taking advantage of the dry weather and looking into the first sunroof problem, the leak. The other problem is electrical and involves the slide button intermittently not working meaning that if I tilt, I can't close it again afterwards without using an allen key.
I've poured an excessive amount of water over the roof and can see water coming out of all of the drain holes so I know they aren't fully blocked. What I did notice after dropping the roof lining is that the long strips of metal on the sides and front that the blind runs along have water seeping out, more so in the corners. With a bit of help (its a heavy and awkward sized object!) I removed the sunroof from the car, removed all the T10 torx screws from the strips and took them off. There was rather a lot of surface corrosion building up in the screw holes which was spreading along the strips. After cleaning them up I ran a bead of clear sealant all the way along where the strips lie and screwed them back on.
I'm still going to investigate the drain pipes as for the water to get that high in the gutter in the first place they must be fairly overwhelmed. Still, today's job fixed something that wasn't right and gave me an excuse to check the condition of the cables which appear to be nicely greased up.