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Musty Smell from AC in 2023 Lucid Air Touring

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Mike T. · rep 0 · May 25, 5:18 AM · 1 replies · solved · Question

Vehicle: 2023 Lucid Air Touring

I've got a 2023 Lucid Air Touring, and recently, when I turn on the AC, there's a distinct musty, almost mildew-like smell coming from the vents. It's especially noticeable when I first start the car or after it's been sitting for a while, and it's quite unpleasant.

The airflow seems okay, and the AC still cools the cabin effectively, so I don't think it's a refrigerant issue. I'm wondering if this is a common problem with the cabin air filter or something more involved with the HVAC system.

Is replacing the cabin air filter a DIY job on these cars, and where is it typically located? Any tips or advice on how to tackle this would be greatly appreciated!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 5:18 AM

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ClearTheCode admin answer:

A musty smell from your 2023 Lucid Air Touring's AC vents is a common issue, often indicating moisture and microbial growth within the HVAC system. This is usually due to a dirty cabin air filter or mold/mildew on the evaporator coil.

Potential Causes:

  1. Clogged Cabin Air Filter: A dirty filter can trap moisture and debris, becoming a breeding ground for mold and bacteria.
  2. Evaporator Coil Contamination: Moisture naturally collects on the evaporator coil during AC operation. If it doesn't dry properly, mold and mildew can grow.
  3. Blocked Drain Tube: The AC system has a drain tube to remove condensation. If blocked, water can pool and cause odors.

Troubleshooting & DIY Steps:

  1. Replace Cabin Air Filter: This is the most common culprit and usually a straightforward DIY task. For most Lucid Air models, the cabin air filter is typically located behind the glove compartment or under the dashboard on the passenger side. Consult your owner's manual for the exact location and specific replacement instructions. Inspect the old filter for excessive dirt or dampness.
  2. Dry Out the System: After replacing the filter, run the fan on high with the AC off for 5-10 minutes before reaching your destination. This helps dry out the evaporator coil and reduces moisture buildup.
  3. Consider Evaporator Cleaner: If the smell persists, you might have mold or mildew on the evaporator coil itself. Specialized automotive AC evaporator cleaners can be purchased. These are typically sprayed into the external air intake vents (often at the base of the windshield) or directly onto the coil if accessible. Follow product instructions carefully.

When to See a Shop: If replacing the cabin air filter and using an evaporator cleaner doesn't resolve the issue, or if you notice reduced airflow, strange noises, or other AC malfunctions, it's best to visit a Lucid service center. A technician can perform a deeper inspection of the HVAC system, including checking the evaporator coil, ensuring the drain lines are clear, and diagnosing any potential issues with the blower motor or other components.

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