Diagram of Aux Air Pump line placement?
I did find my vacuum leak for my AC...the main actuator for the modes has a bad leak...new one on order from my local MB dealership. Its nice having one right around the corner from me...and that I get a huge break on pricing, thanks to working in the Parts Department of a Buick GMC dealership.
I think the vacuum lines travel through the passenger side of the car to the front, than separate once they reach the passenger side footwell. One goes into the door, another one goes left for the drivers side door and another one goes into the dash. There it enters the vacuum distributor which transforms it into 724 lines. This may be a problematic area. This bugger is held on by a metal bracket. On the top it just "slides in" in two places, while on the bottom it's held on to the blower motor housing by a single T20 (if I recall correctly) screw. If you do remove it and after reattachment it sags, you'll have to remove the glovebox to attach it properly. Here are some random pictures of it:
The bracket from the top with the glovebox removed.
The bracket from the bottom. You can just barely see a part of it in the right.
A diagram of AC vents vacuum lines coming out of the vacuum distributor bugger:
A diagram of rear headrests vacuum lines:
A diagram of the AC/Heat vacuum line (this would be The Master Flap, I guess):
A diagram of the Central Locking vacuum lines:
Good luck and DO keep us posted on your progress :-)


