On my 500 SEC.

I've had the dash out and replaced the bad pods and even had to pull it out again to replace a footwell driver side flap so I am getting frustrated here. It will just continuosly switch from heat (on the feet) to A/C cool (dash vents) on it's own with no difference as to what function button is pushed ( other than defrost) I hear the switches clicking on on off while it is alternating between heat and cool, I guess the clicks are the solenoids which are making the noise. Pulled vacuum on all the pods and they are tight and also ohmed out all the vacuum switches and they are good too. I am thinking pushbutton controller? The monovalve wouldn't have anything to do with this or would it? The sampler hose which goes up to the headliner is intact as well. I know from past experience that the climate controls on these cars are buggy but I'd expect it to be better than this.

Thanks and please help before I go out and buy the wife a KIA, (just joking)

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Chas

Had a 380SL, 450SL, 380SEL, 420SEL, 500SEL

Got a Euro 500SEC right now.