I am in need of a 1980 30sd vaccum system diagram, any help? I lose power air and cooling doesn't work. traced every line possible to locate the leak to no avail. won't cut off after it runs for awhile. I believe I have solve that problem. If I can locate the vacuum diagram, I know I could solve the problem. Any recommendations?

 

Walter, I found a book/magazine called "Performance products for your Mercedes Vehicle" They have good diagrams of the vacum system. Their number is 1-800-243-1220- It was $5.

 

Try using these links for a vac diagram.. http://mb.braingears.com/ http://skinnerbox.steaky.org/Service/Library.html