How to Eliminate Unpleasant Odors from Car Air Conditioning?
2 Answers
To eliminate unpleasant odors from car air conditioning, follow these steps: 1. Spray cleaning foam into the air conditioning vents inside the car, ensuring each vent receives some foam, then wait a few minutes; 2. Allow the foam to dissolve any dirt inside the ducts, then turn on the external circulation mode to blow away the foam; 3. Switch to hot air mode and blow for a few more minutes to dry any moisture inside the ducts. The air conditioning system is prone to mold growth inside the car, and unpleasant odors can make people uncomfortable in a closed environment for extended periods. Therefore, it's essential to use the car's internal and external circulation modes wisely, clean the air conditioning filter and ducts promptly, and thus reduce air conditioning odors.
I found that when there's an odor in the car's air conditioning, the most effective solution comes from personal experience. For example, my old car always had a musty smell, so I started by replacing the cabin air filter—it collects dust and bacteria over time, which causes odors. A new filter costs just a few dozen yuan, and I installed it myself. Next, I cleaned the evaporator core using commercially available foam cleaner, spraying it into the AC intake vent and running the fan on high for 20 minutes. Don’t forget to turn off the A/C button 5 minutes before parking and let the fan blow to dry out moisture, preventing mold regrowth. With regular maintenance like this, the odor disappears completely, and you save on repair costs. A clean AC system delivers fresh airflow, making driving more comfortable. I recommend performing this maintenance quarterly to sustain the results.
