I have 97 E320, My AC unit works fine, but one vehicle warms up the center vents will stop blowing air with acceleration. Then they start working again. I am figuring this is some sort of vacuum problem. could someone point me in the right directions?
tks

 

http://w210.pietrzyk.net/climcontrol_pnemcont.htm

it may take some work or the factory wis,but you will need to locate the broken line.
ohlord

 

Thanks for the diagram. Do you know if I can reach this by removing the section above the radio, or is this some sort of dash removal job? I have searched for dash removal for E320.