I'm restoring my 1978 300CD (356K miles) and need to find a guide for the vacuum connections under the hood. I have the shop manuals, but the diagrams aren't much help. I need a photo of properly connected vacuum lines before they go through the firewall, or at least a color coded diagram. Can anybody guide me on this?

Thanks.

I went on ebay and other car sites and looked at engine shots to hook up my vacuum connections

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)