Odor from HVAC vents on Dodge Durango

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
RepairPal Verified
Average mileage: 95,347 (14,000–180,000)
13 model years affected: 1999, 2000, 2001, 2003, more2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012, 2014
36 people reported this problem
Viewing 1 - 18 of 18 comments
Mildew smell, like wet carpet.
Always, no matter what the weather is like.
It has not been fixed. Strong mildew odor coming from vents when Heater and AC turned on.
Mildew smell coming out of HVAC. The passenger vents also blow cold are when the heater is on. I'm not sure where the smell is coming from, but the smell is similar to an electric smell I had in the truck when my alternator started to go bad at 70K miles.
musty smell in heating vents
musty smell a/c & heater vents
Hvac smell all the time
When a/c is on a bad/sickening smell comes out the a/c vents.
When the '2004 Dodge Durango sits for over a day or two in the summertime my vehicle sometimes smells like vomit and/or cat urine and the smell does come from the front and rear AC vents!
every time I start my Durango, it smells like mold.
MY CAR HAS A REALLY FUNNY SMELL SMELLS LIKE SOME KIND OF CHEMICAL OR SOMETHING.
I began noticing a musty mildew smell in my vehicle. No matter what i did to try to correct the problem, it kept getting worse. I will seek a solution through dodge!
the dealer did a cleaning for $326 there was a very bad old car smell coming out of the vents
I have the same musty odors I thought came from the fluid from a leaky power steering rack
moldy smell from A/C vents when first turned on after sitting a couple of hours or longer. Changed cabin filter. Did not solve problem!
Musty odor
Air conditioner has a musty or mildew smell. There is no cabin air filter in the 2003 and older dodge durango. I have a 4.7 Liter 4X4 with low miles that drives great but the smell is nasty.
If ac was off and only cold air was blown after a/c on then a musty odor was detected. condenser replaced but now is doing it again. Techs state no further action can be taken. Really disappointed in Durango. Wont buy another.