All the rest of the pods close and function...it will occasionally work and I can tell because I notice the sudden increase in airflow out the vents.

Sounds like I'll just get the new changeover valve!

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k