[Othen]

Originally Posted by c1800

Consider just replacing the seal with a new one. Listed here as the tailgate seal.

https://classicvolvoparts.co.uk/part...mets_and_Plugs

Wonderful, the exact seal is still available, thank you.

I think the answer is to take the seal off, clean it, spray it with some HD silicone I haven then re-fit it carefully (I think sealing up the join with some silicone). If that doesn't work then replace the seal (not too expensive either).

Alan