.. hi, bought this car about 2 months ago .. its looking I have a non standard rail set-up? (see pics) ... for life of me cannot work out how to get them off, see pics, now that weather has changed lots of water is pouring in to the boot (from top of pillar vents) .. urgent help required if possible, before mold set in!! .. thanks ..

Well, it doesn't look as if anyone can help so here is my contribution.

My cars have the standard roof rail plastic filler not the fancy ones that are shown on your pictures but perhaps what I did might just apply to yours as well.

I had the dreaded water leak from the shrinking silicone filler applied at he base of the rail grove.

The standard roof rail plastic filler on mine is only held down by double sided sticky tape. Some of Mrs ScaniaPBman's heavy duty button thread was liberated and eased under the rail. You will probably have to prise up the end of the rail to get the thread in but watch you don't chip the paint. Something plastic to do the levering up should be OK. I used a big screwdriver with black duct tape wrapped around the blade.

A sawing action with the thread will cut through or under the adhesive tape.

If those shiny dots on your pictures are screw heads get them out of the way first.

After thoroughly cleaning the grove I liberally applied silicone sealer, pressed the rail back in and left it overnight with a heavy weight pressing it down in.

Best of luck,

ScaniaPBman.