1976 450 sl vacuum line diagram
 

Does any one have a diagram of the vacuum lines in a 1976 450 sl? I have heard that they are listed by color but mine are all bleached out and look pale yellow or clear and some were cut and plugged before I got the car. I am also looking for info on how to adjust the idle after I replace the vacuum lines.

for what ? ACC , engine? body? lots of systems. I believe you will find what you need under the stickys in Tech or Vintage

vacuum lines
 

Ron thanks for the reply. For the engine. What is ( Stikies) where do I find that.

haha , a sticky is when a lot of people look for a typical topic and the moderator puts it first in the forum
like this
http://www.peachparts.com/shopforum/diy-links-parts-category/146034-fast-navigation-do-yourself-links.html?highlight=vacuum+diagrams

But here is what you need, I think if you print the picture , you will be better able to see the color key, if not let me know, I can try another method

diagram THANKS !
 

Ron this is great. Thank you. The words at the bottom are so small even when I blew it up and the color gets lost but I should be able to follow each line, to and from what ever they service.

This is my first Mercedes. I always wanted and S/L and I met a guy who had this in storage. He was not mechanicly inclined and had no idea where to start. I picked it up for not too much and so far I have replaced all calipers and flexable brake lines and cleaned out the mechanical fuel injection (completely) and got it running. New belts & plugs too. I love the way the Germans engineered things like the saw tooth on the alternator for belt tentioning etc.. I found that there were several vacuum lines removed and plugged and I even found one line that was supposed to attach to a short steel pipe that is about 1/8th inch in diameter and it is down on the engine on the left hand side below what would be an intake manifold. ( hard to see) I found that this little tube was sucking in all the vacuum it wanted because the non vacuum line was what some one had plugged. Finally I took off the air cleaner and put double plastic wrap over the opening and covered that with several floded burlap bags. The engine idled right down ( real slow and smooth) then I was able to hear the sucking air and replace some vacuum hoses. Hey that 1/8th inch tube I mentioned, There is NO WAY in hell that you can get your hand down to touch it or push a vacuum line on it so I cut and bent a wire hanger, slid a piece of vacuum tubing onto the hanger and then bent the hanger so I could fish it down to the tube, and the hanger, because I had filed the end to a point slipped right into the tube. Then I just pushed the vac line down the hanger and over the tube. That was great so I sat down and had a beer. When I figure out how to attach pictures I will show you my car projects.
1923 T bucket with a 1960 Chevy 6 cylinder & big tires on rear
1923 Turtle back Doctors T bucket with a 1949 ab V8 flat head
2000 C70 Volvo convertible ( high pressure turbo) This thing flies
2004 jeep GC
1984 jeep CJ
1976 450 S/L
thanks again for the picture. Just qurious, where did you get it? what publication?

I have a lot of shop manuals, lots of stuff that I have in my files as well, been messing with old MB's many years. Good luck , let me know if I can help ,