How to Deal with Unpleasant Odors When Using Car Heater?

1 Answers
DiLogan
07/30/25 4:32am
Unpleasant odors when using the car heater are mainly caused by excessive air humidity or too much condensation from the air conditioning system, creating a damp and dark environment suitable for mold growth. Here are some ways to address the issue: Run the Blower at High Speed: For minor odors, park the car in the sun, set the knob to the heater mode, turn the blower to the highest speed, and open all doors to let the dirty air escape outside. This method utilizes UV rays to disinfect the interior and effectively removes dust from the air ducts. Running it for about 5 minutes can effectively eliminate the odor. Clean the Air Conditioning Ducts: Regularly replacing the filter can keep dirty air out, but for older vehicles, dust and mold may still accumulate in the air conditioning system. In such cases, an air duct cleaner should be used. There are many brands of air conditioning cleaners on the market, ranging in price from tens to hundreds of yuan, and car owners can purchase and clean the ducts themselves. First, locate the air filter's installation position, spray the cleaner into the ducts from the filter location, then turn the air conditioning to the highest setting, open the windows, and run it for a few minutes. Replace the Air Filter: The air filter is the most overlooked component. Many drivers are unaware that their car even has an air filter. A dirty filter not only fails to perform its intended function but also causes secondary pollution to the incoming air. To completely eliminate odors, it's essential to address the source.
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