As you can see by the photo attached, I have a tear on two separate rubber seals on my panoramic sunroof.  This has happened this summer from the general operation of the roof.  It appears that the sun has deteriorated the rubber material causing it to tear. So far, no water ingress but this winter will be the ultimate test.     I have a quote from Westover Skoda in Salisbury for the inner rubber seal which would be the one i could replace myself; £64.35 + VAT (see part No.1