Need instructions how to change the rubber seals in the openable front glasses in the windshield. The rubber seal is inserted in to the aluminium frame, How can the frame be opened to remove the old seal and what kind of rubber seal should be used as replacement? Instructions would be highly appreciated.

Its not easy to remove this seal because its mounted inside the frame. The screws often snap off. Easiest way is to cut off the outside part of the seal and replace it with a standard rubber seal.

Thank you Fredrik for the instructions. That is most likely the best solution.