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Foul Odor When Utilizing AC

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Old Apr 24, 2020 | 07:07 AM
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2020 MB GLE 350
Foul Odor When Utilizing AC

As the temps here in TX where I reside have began to reach the mids 80s, I have began to run my AC. What i have taken notice to is the foul odor that comes from the vents when the AC is on.

My filters are not due for change-out as I recently had that completed. I called the dealer and they advised me to run the AC for 2+ mins after I reach home to remedy the odor. I haven't done that as I do not believe it will completely remedy the smell. Not to mention this is the third MB that I have owned and all of them have possessed this identical odor.

Anyone in the forum have this identical issue and can share info please do.
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Old Apr 24, 2020 | 07:21 AM
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The odor comes from mold/mildew the builds up from moisture in the ducts. As part of my routine interior cleaning I spray the a/c intake duct with Lysol disinfectant spray. I'm in Florida and the a/c runs 11 months of the year.
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Old Apr 24, 2020 | 07:36 AM
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Where actually is the AC intake duct? I'd like to try that to see if it remedies the odor.
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Old Apr 24, 2020 | 09:02 AM
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On my '18 E300 it is on the right rear side of the engine compartment under a shroud. The easiest way to tell is to turn the fan on high and follow the sound. You can also spray into the ventilation outlets with the fan turned off.
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