http://www.peterschmid.com/vacuum/1980/617_950.jpg

This is as close as I have found. My 79 very closly resembles this diagram, except I dont have the EGR stuff so alot isnt there.

There may be one on this site,, this is a great info site for 116 bodies.
http://handbook.w116.org/

__________________
Second owner 1979 300SD 250K miles.
1995 Ford Lightning
66 Mustang
87 5.0 Mustang
08 Ford Edge
46 Willys Jeep
89 Transalp
97 Dodge Ram 2500 Cummins..