I have a 2013 VW Passat TDI SEL with 120,000 miles. Within the last month the heater/AC fan blower motor would suddenly cut out and not work. I was able to correct it for a while by turning off and restarting the climatic control, but now it will not work at all. Any suggestions?
You would really need a wire diagram, voltmeter and scanner to do a reliable diagnosis. It sounds like the climate control panel is bad, but that would be expensive to try, and find out it was one of the other many possibilities. Bad blower, faulty wiring, fuses, blower resister, etc. Or you can take it to a shop and get a one time diagnosis.