How Often Should the Cabin Air Filter Be Replaced Normally?
2 Answers
Generally speaking, the car's engine air filter should be replaced approximately every 15,000 kilometers driven, while the cabin air filter should be replaced every 10,000 to 20,000 kilometers or about once a year. However, the specific replacement interval should be determined based on the vehicle's usage conditions, driving environment, and air quality. More information about the air filter is as follows: 1. Location of the car's air filter: The air filter, fully named as the air filter element, is located on the side of the engine under the hood. Some air filters are cylindrical in shape and are also referred to as air filter cartridges. 2. Function of the car's air filter: It is used to filter the air entering the engine, removing dust particles from the air, and providing clean air to the engine's combustion chamber, primarily to protect the engine.
I've been driving for over ten years, and I think the normal frequency for replacing the cabin air filter is every 1 to 2 years, or roughly every 20,000 kilometers. This is because the filter primarily traps dust, pollen, and pollutants entering the vehicle. If not replaced in time, the air conditioning may blow out unclean air, leading to musty odors inside the car and reduced cooling efficiency. Especially since I live near an industrial area with heavy air pollution and rapid dust accumulation, I need to check and replace it every year and a half. Additionally, during summer when car usage is high, bacteria and mold grow quickly, so I usually replace it during spring or fall maintenance. Long-term neglect can affect respiratory health, potentially causing coughing or allergy symptoms. Car manuals typically recommend similar intervals, but the exact timing depends on your driving habits and environment—such as frequent highway driving or dusty roads, which may require earlier replacement. Overall, regular replacement ensures fresh cabin air and a more comfortable, worry-free driving experience.
