Join Date: Aug 2015
Location: Southeast Coastal USA
If the smell is coming from mold/mildew on the condenser, trying running the system with the a/c off and turn the heat on full blast. That's the first DIY I would try. That may help dry out the coil and the heat may kill the mold. You may have to do this for about 20 min or so. You also want to make sure your drain lines from the condenser is not plugged up. You can tell if it's plugged or not when running your a/c, you'll see water dripping from underneath the car from the drain line. If the moisture can't drain away from the condenser, then mold/mildew will occur. There are products that you can spray in the air inlet that will kill the mold/mildew, but try this simple DIY first and see if that takes care of the problem. You may already know this too, but in most cases, do not run a/c or heat in recirculation mode. All you do is keep recycling bad air - you need to keep a fresh supply of air coming into the car to avoid odor build-up.
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I love my TDI!
Last edited by jhinsc; 10-17-2015 at 07:28 AM.