philnewmerc
MB Enthusiast
Expensive alternate to Gummipflege is Krytox, which was what BMW sold to owners to cure the well known leaks on their Eos. On Ebay you can buy a 5ml bottle to try it out.
So I have now tried gummipfledge and Krytox and neither makes a blind bit of difference . I did apply the stuff after cleaning the rubber and fairly liberally even though it cost more than frankincense. What I haven't tried is silicone oil or PTFE spray. I'm beginning to think it's not really possible if the seals are damp and freezing... I think I will try PTFE dry spray next as I think the silicon oil will probably just be similar to the krytox (?).
I suppose that leads to the question of will it damage the seals to pull the door open and then close it on top of the seals? Unfortunately I have no alternative but to do this as I can't phone a client and say I'm waiting for my frameless windows to drop
Thanks for all the suggestions though