What Causes the Odor in Oshan Air Conditioning?

[OHayden]

The reason for the odor in Oshan air conditioning is: dust accumulation on the air conditioning filter and copper sheets inside the air conditioner. Once the heat exchanger fins inside the air conditioner are completely covered with dust, it may lead to blockage, resulting in an unusual odor. When the air conditioner is turned on, this odor will spread. Oshan is a passenger car brand under Changan, with models including: Changan Oshan Kosei, Changan Oshan Koshang, Changan Oshan X70A, Changan Oshan CX70T, Changan Oshan A800, and others. Taking the Changan Oshan Kosei as an example, it is a mid-size SUV with dimensions of 4830mm in length, 1868mm in width, and 1750mm in height, and a wheelbase of 2800mm. It features a MacPherson strut front suspension and a multi-link independent rear suspension.

[VonJayla]

The foul smell in Oshan air conditioning is often caused by mold growth on the evaporator. After each parking, the condensed water doesn't dry completely, especially in humid environments, allowing bacteria to multiply rapidly and produce that musty odor. I've personally repaired many units and found that dirty filters or foreign objects in the air conditioning ducts can also cause this issue. Don't underestimate it - the pungent smell may affect health and cause fatigue while driving. I recommend trying a new filter first, which is inexpensive and effective. If that doesn't work, clean the evaporator with specialized cleaning spray to eliminate bacteria and odors. Before parking, turn off the AC and let the fan run longer to dry the interior, preventing recurrence. In short, don't delay - address it early to ensure fresh air.

[KayleeAnn]

I also encountered a foul smell in my Oshan car's AC, with a musty odor blowing out when turned on—super annoying. After checking, I found the cabin air filter was too old, accumulated dust, and bred bacteria. Replacing it fixed the issue. Water retention in the ducts or evaporator can also cause odors, especially noticeable on rainy days. A simple solution is to clean the system—either DIY with tools bought online or hire a professional. Don’t endure it; prolonged exposure affects breathing and feels worse with windows closed in summer. Make it a habit to replace the filter regularly, roughly every six months, for peace of mind. Keep the AC dry by not always using recirculation mode to minimize moisture buildup. Act promptly—once the smell is gone, driving becomes much more comfortable.

[GavinLee]

The main cause of air conditioning odor is the decomposition of bacteria on the surface of the evaporator in a humid environment, which produces unpleasant smells, and Oshan vehicles are no exception. When residual moisture from air conditioning cooling fails to dry completely, it promotes mold growth, resulting in a musty odor. Aging or inefficient filters can also exacerbate the problem. Solutions include cleaning the system or replacing it with a high-quality filter, and regularly switching to external circulation for ventilation. Turning off the compressor before daily shutdown and allowing the fan to dry the interior can effectively prevent odors. Although the odor may seem minor, it can accumulate easily, so addressing it early ensures better air quality.

[PeytonRose]

Don't ignore the foul smell from your car's AC - it indicates bacterial growth that pollutes cabin air, potentially causing dizziness or allergies. In Changan Oshan vehicles, clogged evaporator water accumulation is often the culprit, while failed filters also contribute to odors. Take immediate action: check if filters need replacement, clean AC ducts, or visit a professional. The stench isn't just unpleasant - it may harm respiratory systems and distract drivers. Develop maintenance habits: regularly clean evaporators and keep them dry. Safety first - never delay addressing this issue.

[SanCali]

The key to preventing air conditioning odors lies in maintenance. Replace the filter every six months to avoid dust accumulation and bacterial growth. For Changan Oshan models, turn off the AC a few minutes before parking and let the fan run to evaporate residual moisture completely. Evaporator cleaning can be easily DIYed using spray cleaners or professional tools. Check external air intakes to ensure they're not blocked by leaves, which can cause secondary pollution. Simple daily actions can eliminate odors and maintain freshness, making driving more enjoyable with pure air once the smell disappears.