Radiator Over Flow Tank Leak (84 300SD)
 

I am getting a coolant leak from the under side of the radiator over flow tank. The hoses appear to be secure and try. Any idea?

hoses dry
 

That was a typo. I was trying to say that the hoses are dry.

The one in my 83 SD had a crack. I fixed it with Permatex gray RTV because that's what I had handy. If I had to do it over I'd try a two-part epoxy made for plastics.

The first thing I noticed was that the hose lead to the area behind the headlight. I stuck it back in the hole in the fender but the puddle and coolant loss persisted. I pulled the tank and noticed the crack.

Sixto
95 S420
91 300SE
87 300SDL
83 300SD

BTW, before that, the sealing part of the cap stuck to the neck of the reservoir so I think too much pressure caused the crack. I also changed the cap since when I took it off it came off in pieces.

Sixto
95 S420
91 300SE
87 300SDL
83 300SD