When Should the Car Air Filter Be Replaced?

2 Answers
SanLevi
07/24/25 4:14am
Under normal circumstances, it should be replaced approximately every 10,000 kilometers or once a year. It is recommended to clean the air conditioning filter. The car air conditioning filter should be replaced under the following two conditions: 1. After cleaning or tidying up the car, if there is still a persistent odor or the air inside the car is not fresh, you should consider replacing the air conditioning filter. 2. If the car has traveled 20,000 kilometers, it is best to replace the air conditioning filter. If the local air environment is poor, with frequent sandstorms and smog, it can be replaced as early as 10,000 kilometers. Generally speaking, the air conditioning filter should be replaced every 7,000-10,000 kilometers. If the local air environment is very harsh, it is recommended to replace it as soon as possible.
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OAlina
08/10/25 11:49pm
As a veteran driver with over a decade of experience, I believe air filter replacement should depend on actual driving conditions. The general recommendation is every 10,000 kilometers or 6-12 months, but this isn't a rigid rule. I always have mechanics inspect it during maintenance - if I've driven through dusty construction sites or humid areas where the filter gets caked with hardened dirt, I replace it early. Many overlook this, but a clogged air filter makes the engine guzzle fuel and lose acceleration power. Last time on the highway when my gas pedal felt heavy, it turned out to be a dirty air filter. Pay attention to vehicle performance changes - since filters only cost a few dozen bucks, frequent replacement beats engine repairs any day.
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