path23dv
Veteran Member
I have a 2009 Jetta, with the engine at the normal operating temperature(190) I'm not getting any heat into the cabin. I can get heat only when I activate the aux heater by setting temperature to 80. Air flow to vent, foot, windshield works as expected. AC works fine. Fan works at every setting. With the fan set to 1, I noticed a change in air flow as I raise the temperature above 72, but no heat. Does the temperature knob move a cable to a valve or is it vacuum activated? How can I diagnose the problem?
Thanks
Paul
Thanks
Paul