Odor from HVAC vents on Dodge Avenger

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.

Problem Data
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Average mileage: 63,817 (20,000–152,999)
11 model years affected: 1995, 1996, 1997, 1998, more1999, 2000, 2008, 2009, 2010, 2012, 2013
37 people reported this problem
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Viewing 1 - 15 of 15 comments
Very bad Moldy Musty smell coming out of air vents - Scott March
Musty Smell from vents
Fishy smell
Bad musty smell in the cabin from the Air vent
Same thinh as everyone. ..water on passenger side floor
I have this problem when I turn on the A/C. smells really musty
Smells like wet towels were left in the car over night. After replacing the cabin air filter, the car continues to have issues with an odor coming from the air conditioner.
musty smell when air is turned on.
Musty smell when any vent is opened. Been going on for years. Brought it up to the dealer on at least 3 occasions - no permanent result - just temporary.
recently we began have a stale must smell when we turn on heater or defrost. It is very strong.
2008 Dodge Avenger has the same musty smell. Replaced all air filters (not cheap) but only helped for a short time.
The musty smell is noticeable when either using the vent or air conditioner. It fades after a few minutes but does not totally go away.
MUST SMELL WHEN USING THE HEATER OR ESP THE AC WHEN FIST TURNED ON. REPLACED HEPA FILTER AND IT WAS BACK IN A MONTH