Oh sorry - the point of this is to fix your leak of course - you need to get in touch with the people on the vintage forum who will probably be able to help you find a schematic / tell you what to do. I've never seen your transmission before so I doubt if I'll be of any use...

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!