Heating/cooling
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Joined: Apr 2011
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From: Southeastern CT
Heating/cooling
Here's the deal. I have a 2006 a4 2.0 quattro. My A/C doesn't work. Plenty of freon in it. And, my heat does work... A bit. When it's really cold, nothing. When it's in the 20s or above, it works, but not well. It almost seems like the coolant isn't getting through the core well. I've flushed it several times and even switched the hoses to have the inlet and outlet on the different opposite sides to get the flow going in the other direction. If I turn the heat off for a minute, it will heat up, and blow hot air for a second, then it cools right down. Works a little longer when I'm at highway speeds. Could this be a (or several) sensors? Is there a way to test flow and pressure?
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