these seals are avialbe to order now and have lips in the corners to channel the water away better
there is a bulletin which adresses this issue with the water a modified seal which should limit this concern it has small up turns at the corners to prevent this ingress Replace the rear screen seal.
Use only seals with the part number: 7L6 845 521 E.
hope this helps Have just pasted from a previous post so sorry for repeating some of the wording 8)
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