Is there a way to manually hold the fresh air recirculation flaps in the closed position? (W124 1986 300E). I'm assuming that they default to full open on no vacuum, or when the pod is bad. In my case they must be open as hot outside air is being drawn in while the system is in AC and reducing the efficiency of the system. Trying to avoid pulling the dash just a bit longer.

This tread should be made into a "sticky" as it contains very valuable information. Hope it can be revived...

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W163 ML230 EURO SPEC 1999
W124 300E 1986