Had a phone call from VW today and they have decided that they are willing to change both of the windows . They said they are willing to do it as a good will gestured and happy to replace with new sliding windows but will not gaurantee they will not leak again or the will replace with fixed windows that will not leak!!! I’ve looked at the Kombi on display in the showroom and they have exactly the same window. I was thinking of having and prefer new sliders and maintaining them by keeping the drainage holes blown out and using the silicon grease on the seals?? Has anybody had new VW sliding windows fitted at the dealer that still leak?