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take it off recirculation mode and make sure that fan runs all the time car is on. You also can spray lysol into the cabin air intakes (these are usually located at the base of the front windshield, to get to open the hood, system fan on high and spray copious amounts in. We had the issue with our 500x but finally went away.
 

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Remove internal air filter and use a bacterya gas treatment the ac is a big vector of smell and dirty bacterya
 

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2018 Stelvio Base 20" yellow calipers
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I am enjoying the manual ventilation setting flexibility - try to limit it's use (mainly when the hot flasher is along for the ride she controls any aspect of climate or sound) and ventilate as much as possible when you can. You may want to verify no issue with the condenser drain (blockage) below.

Guaranteed the issue is no worse than any other vehicle during humid season so same applies to all vehicles.

The recirc options deserve some intention too- M is recirculate and is used only in extreme humidity to limit introduction of moist air and improve dehumidification.
 

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Discussion Starter · #6 ·
Thank you everyone. I turned recirculation off and things seem to be improving. I’ll keep you posted.
 

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Thank you everyone. I turned recirculation off and things seem to be improving. I’ll keep you posted.
Hello ArturoPo10,

Just to chime in, we're available via direct message if you decide you'd like to get this odor checked out by the dealer. Very sorry for any inconvenience this has caused.

Jasmine
Alfa Romeo Social Care Specialist
 

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I have same issue it’s a bad odor that comes and goes. Also had complete failure of a/c system on long drive. Was just spitting out hot air. Had to shut off system for a while while driving the reengage. It was very annoying and definitely a problem.
 

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2018 Stelvio Base 20" yellow calipers
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I have same issue it’s a bad odor that comes and goes. Also had complete failure of a/c system on long drive. Was just spitting out hot air. Had to shut off system for a while while driving the reengage. It was very annoying and definitely a problem.

I have observed the Auto CC defaults to ambient temperature, so if you are wanting dehumidification it may delay conditioning if the inside temp is within the preset range. Simply override by turning 'colder' or manual adjustment.


I have also noticed a very slight odor when it cycles from A to M and manually switching to M (manual known as 'RECIRCULATE' mode) in high humidity helps. The controls give lots of flexibility which can be useful. As a practice from all of my vehicles in high humidity weather, I do try to circulate with AC off (to dry the condenser coils and prevent mildew growth/stale air due to optimum conditions for it).


Hope this helps and definitely want to make sure the drain is not blocked which would trap condensed moisture in the chamber... observe a puddle or 'drip' of condensed moisture when you park. In a previous car (GM product) I did experience moisture in the carpet under the CC due to this and it trapped overflow inside the vehicle.
 

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I have same issue it’s a bad odor that comes and goes. Also had complete failure of a/c system on long drive. Was just spitting out hot air. Had to shut off system for a while while driving the reengage. It was very annoying and definitely a problem.
Hello Panicciad,

You've got some great advice here. If you decide you'd like to have this looked at by the dealer, let us know. We're available via direct message and would be glad to get this over to a Case Specialist for further handling.

Jasmine

Alfa Romeo Social Care Specialist
 

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Discussion Starter · #11 ·
I had the recall work done recently and asked them to look at this issue. They indicated that they could not re-create the problem and that no one else had reported issues…they said it was draining properly. I continue to get the intermittent odor with recirculation
 

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awful smell daily from ac

Is anyone experiencing odor from A/C? I’m getting a mildew smell? Any suggestions?
Stelvio Ti purchased in Jun-2018 and the air conditioner stinks. Send it to for service and the entire Alfa Romeo dealership assumes plausible deniability. The air conditioning smell is horrible to stand when it intermittently starts to foul up.
 

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2018 Stelvio Base 20" yellow calipers
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Ours is excellent. What is specifically the complaint?
 

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In my Stelvio....it smells like "Play Doh" and I LOVE IT !!!
 

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I used to have lots of musty odor from my old Accord's AC. Then a service advisor told me to turn the AC off and the fan up to high for several minutes before parking/shutting off the engine. I do this now religiously including with Giulia and have zero smells. I also almost always drive with the re-circulation off. The fan working while the AC is stopped for those last few minutes will dry out the evaporator and its surroundings. This means mildew and other damp-dark-places-loving bacteria won’t thrive there and you’ll be spared from foul smells and possible respiratory system issues.

Seems to work great for me. :smile!
 

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Stelvio Ti purchased in Jun-2018 and the air conditioner stinks. Send it to for service and the entire Alfa Romeo dealership assumes plausible deniability. The air conditioning smell is horrible to stand when it intermittently starts to foul up.
Hi setash,
We would like to hear more about your experience. Please send our team a private with additional details of your dealer visit.
Julie
Alfa Romeo Social Care Specialist
 

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I purchased my Stelvio TI about three months ago and already brought it in three times for the odor mildew smell from the AC. It starts when the automatic engine stop turns off and on which now I disable each time I enter the vehicle. It also does it intermittently all the time. I do have the circulation on manual and have done what is required. There is also and Odor that comes out when I drive on the highway on high speeds from the engine. This is definitely an issue, and Alfa Romeo cannot simply say its nothing. There is an issue and fixing must be done!!!
 

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DId anyone find permanent solution to this. I Live in CT and got my car 2 months ago. we just had some warmer weather where i needed to turn my ac on and i got mildew like smell, similar to you guys. It really annoying to change the re circulation settings all the time(if even that will cure the issue or not). Any permanent solution?
 

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2018 Stelvio Base 20" yellow calipers
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Hope this helps (and I have done it with all my cars). Ventilate the condenser with fresh air after using the ac. Warm moist air trapped in that environment is trouble.
 
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