w114 acc vacuum diagram
 

I'm looking for a vacuum diagram for acc in 114 280c trying to troubleshoot defroster vacuum system thank you

I don't know if this will help but here it goes....

acc vac diagram
 

thank you

thank you for the diagrams problem I'm having is the rod on the changeover switch and vacuum element needs to be pushed up towards the vacuum change over flap then defroster will operate when pushup on little button on micro switch it does stop blowing is this a sign vacuum changeover flap should be replaced?? theres another one on pass side maybe better to replace both ?

Hey check this out. Will this help? This is from a 107.

PeachPartsWiki: Center Vent/Defroster Relationship

107 vacuum diagram
 

thank you Thomas should be simuliar to 280c would think its basic going to blow smoke in main lines tommoerow then start the girl up should be fast way to detect leaks think the defroster element bad because I push up on rod that connects micro sw and element up and the blower works when running it doesn't blow like it should all speeds do work so don't think its the resister sounds like vacuum thank you for diagram when fig this problem out ill post for future refrence