I have a coolant leak that I discovered last week when I was replacing the thermostat on my car 1990 300SEL 133K. There is a very small hose about 2-1/2 inches in length that goes from the thermostat housing over to the head. If any of you have worked on these cars you probably know what I am talking about. I tried to figure out how to replace it and was totally stumped. I finally gave up and brought it to my Indy. He say it was a really bad design and you have to take the water pump, power steering pump and other stuff off to get that stupid house out and the new one on. 2-1/2 - 3 hours labor. What a crappy design. I left it there for him to do. I am sure I could do it, but I just don't have time this week or weekend and we are getting ready to have bad weather. Damn! I am almost always impressed with the way Mercedes thought out these things, but this is just dumb.
Donald H. Snook 1990 300SEL 133K