While removing the passenger side carpet to disable the MMI Screen motor, I noticed the carpet foam was soaking wet. Thanks to Audipages post, I removed and cleaned out the AC drain hose. I couldn’t believe there were so much stuff stuck in that little hose. After cleaning it, drove with AC on for about 1/2 an hour, came back, check under the carpet, the condensation existed on top of the AC distributor duct, so it may not just the leaks from the AC drain hose.
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