I'm in the north east US, and as the weather has gotten colder, I noticed my heat working inconsistently. My friend hooked it up to VCDS last night and cleared everything else, then we checked tonight, no faults, and it looks like everything is working correctly when he monitored things while it's running.
While the car is idling, the heat is as expected, very hot. Once I start driving, withing minutes the heat starts to fade, eventually just cold air blowing. Once I pull over, the heat immediately starts coming back, getting very hot within a minute.
This is a 2015 TSI SEL, dual climate control. For testing, I've tried a lot of different settings, but for simplicity sake, I was testing this on "auto" with the heat on "hi". Also, while driving and the temp drops, it doesn't help to turn on the recirculating air.
Any suggestions what this might be? Heater core seems like a common issue when the heat isn't working, although it seems odd that it would work while idling, but not while driving.
While the car is idling, the heat is as expected, very hot. Once I start driving, withing minutes the heat starts to fade, eventually just cold air blowing. Once I pull over, the heat immediately starts coming back, getting very hot within a minute.
This is a 2015 TSI SEL, dual climate control. For testing, I've tried a lot of different settings, but for simplicity sake, I was testing this on "auto" with the heat on "hi". Also, while driving and the temp drops, it doesn't help to turn on the recirculating air.
Any suggestions what this might be? Heater core seems like a common issue when the heat isn't working, although it seems odd that it would work while idling, but not while driving.
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