Thank you, its hard to find someone other then the dealer to fix it...smhVery common failure on the Passat is the heater core is plugged causing no heat. You usually or eventually will get a check engine light for EGR cooler temp.
I’d double check the heater core pipes are cold to the touch when fully warmed. Then you know that is the problem. Your able to access them just to the right of your throttle pedal
Can you scan to check for codes in the ac system? Blend air door might have also failed. (I just read you don’t hear the door actuating.)
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