An air filter element on a vehicle is typically is replaced after every 10,000 to 15,000 kilometers of mileage or once a year, and the specific replacement cycle is dependent on factors such as operation environment, driving habits, and filter element type. Checking the condition of the filter element regularly and replacing a dirty or clogged filter in time can effectively protect the engine and improve vehicle performance.
The replacement cycle of an air filter element:
General recommendation: The air filter should be replaced after every 10,000 to 15,000 kilometers of mileage or once every 12 months. For the specific replacement cycle, please refer to the vehicle’s user manual.
Special circumstances: If the vehicle is used in areas with high dust, frequent sandstorms, or poor air quality, the replacement cycle needs to be shortened. If the filter is found to be very dirty or if the engine performance has degraded, it should be replaced promptly.
Factors impacting replacement cycle of an air filter element:
- Operation environment:
Dusty environment: If the vehicle is used in dusty areas such as those with sandstorms, dirt roads, or construction sites, the filter element is prone to clogging, and the replacement cycle should be shortened.
Urban environment: If the vehicle is used in urban areas with poor air quality (such as due to haze), early replacement is also required.
Rural or suburban areas: In areas with cleaner air, the replacement cycle can be extended appropriately. - Driving habit:
Frequent start and stop or low-speed driving (such as during traffic jams) can cause the engine to inhale more dust and make the air filter element dirtier. - Vehicle use frequency:
For vehicles that are frequently used (such as taxis and vehicles for ride hailing services), their air filter elements should be replaced more frequently.

How to examine the condition of an air filter element?
- Remove the filter element:
Find the air filter housing (usually located in the engine compartment) and use a tool to open the housing. - Perform visual inspection:
Check if there is obvious dust, dirt or blockage on the surface of the filter element. If the color of the filter element has turned black or if there is a thick layer of dust on the surface, it should be replaced. - Light examination:
Aim the filter element at a light source. If the light cannot pass through it, the filter is has been clogged.
Methods for extending the service life of an air filter element:
- Regular cleaning: For a washable cotton or foam filter element, clean it with special detergent regularly and dry it in the air.
- Avoid harsh environment: Try to avoid driving for long in dusty or heavily polluted environments.
- Use a high-quality filter element: A filter element of a well-known brand can provide better filtration effect and a longer service life.