HI,

I have a new 1974 240D W115. The car will not shut off. I would like to check the entire vacuum system but don't have a diagram or solid base to start off of.

Some people say my runs my door locks and trunk and some say no.

I have searched and searched and there's so much info for different years/models but not mine.

Any help would be greatly appreciated!
Diagram if possible or tell me what I should have running so I can check and re run lines, please