Having recently bought a Duo I am attempting to put right all the niggle bits and pieces. I’m a bit confused by the large rear window which clearly is supposed to open but is stuck fast. The problem seems to be the rubber seal(s). I can’t work out if there are two (one on the van and one on the window, or just one, but the “glass” is stuck firmly closed. I’m wondering if this is a problem after being exposed to high temperatures or could it have been done deliberately due to leaking.

Anyway, I’m hoping someone might be able to put some light on this.

Many thanks
Chris

Probably caused by exposure to the sun's heat.

The best way to free your window is to squirt some silicone spray between the window and rubber seal - use the aerosol's straw to get it in.

When it's free give all the van's window seals a good soaking with the silicone to prevent them sticking in the future.

Many thanks, I'll give that a go

My old Puck had the grey rubbers welded to the window, I couldn't salvage the rubbers however I managed to open them with an old credit card between the rubber and the window. Once the seal was broken I was able to get the rest of it off. Use John's silicone spray idea to loosen and also the credit card.