I'm attempting to troubleshoot my 300SDL's lack of heat coming into both driver and passenger footwells. I managed to remove the CCU and I see one black oblong device with the #3 vacuum line running to it from the manifold on the right side of the center column. There is a lever coming out that I thought would control both the passenger and driver flaps but it appears it's only for the passenger side. If I slide the lever to the left I get heat in the passenger footwell only. I guess that pod is bad but more t/s is required with a Mityvac (gotta get one!). I do see a pink one for what appears to be the center vents but I can't see another one in there. Does anyone know if there's another vacuum pod someone for the driver's footwell or .....? Thanks.

__________________
Tony
(Actually, a member since 2000)

The following place has replacement rubber internal diaphragms for those pods. You need to call them...

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