Problem Description and Possible Solution
Some vehicles may develop a musty odor coming from the HVAC system, Dodge has issued a cleaner/disinfectant and a coating for the evaporator designed to inhibit bacterial growth.
Average mileage: 68,816 (23,000–115,000)
35 people reported this problem
bought the car in march, 2010 with 14000 miles on it and have always noticed a musty smell coming from the vents mostly when using the a/c. now the car has 44000 miles on it and the front passenger side floor board has been wet the last few times i have driven it in the rain.i have checked the cabin filter under the hood and was damp,looks like water could very easily come in through this vent, but havent yet proved it.
2013 Chrysler 300 s purchased used, and the car had musty odor from ac, and low pitch tapping sound behind dash. Dealer replaced blower motor.. problem resolved