84 380SL Climate Control Vacuum

[xke190sl]

I have been working on the climate control system on my 84 380SL. The diagrams on the list have been wonderful. I have 2 questions:

1. Can anyone give me the color of the vacuum lines going to the center vent (#40) and the color of the 2 vacuum lines going to the defroster acuator (#38). I need both the side input & the bottom input of the defroster acuator.


2. I pulled the vacuum lines off of the defroster acuator last night. Using my vacuum pump, it held vacuum on both the side & bottom (and I could tell the lever worked), BUT the defroster vents did not close next to the windshield. I still had alot of air going to the windshield. I am assuming it should have closed completely? If so, why didn't the lever close the flaps?

Thanks for any information.

Richard

[meltedpanda]

I have found that the foam around the flap itself gets to a point where it does not close well enough to prevent air flow. The other issue is that the car must provide the vacuum to keep the flaps closed , if there is a leak elsewhere there may not be enough vacuum to keep them closed completely. Mitty vac at the pod itself may do the trick but the car system may not

[Walrus]

FYI for anyone working on the two-stage def pod in an ACIII system... Vacuum has to be applied to both ports of the pod to close the vents fully.