How often should the air filter and cabin air filter be replaced?
2 Answers
The replacement intervals suggested in the vehicle maintenance manual are as follows: the air filter should generally be replaced every 20,000 to 60,000 kilometers. If the driving mileage is low, it is recommended to replace it every 12 months. The cabin air filter should be replaced approximately every 10,000 kilometers. If not replaced for a long time, it will affect the performance of the air conditioning system and the health of the vehicle occupants. Cabin Air Filter: The cabin air filter is an important component of the vehicle's air conditioning system. Its main function is to filter bacteria, PM2.5, moisture, pollen, dust, and other particles from the air. It is recommended to inspect both the air filter and cabin air filter during each maintenance service. The vehicle's air filter is located in different positions depending on the intake design and engine structure, typically found in the air cleaner on the engine intake pipe. The cabin air filter is usually installed under or inside the glove compartment on the passenger side, while in some models, it is located under the windshield in front of the passenger seat. Function of the Cabin Air Filter: It absorbs fine particles, reduces respiratory discomfort, minimizes irritation for allergy sufferers, and protects the air conditioning cooling system. Without the cabin air filter, these particles can enter the cabin, contaminating the air conditioning system, reducing cooling efficiency, and causing allergic reactions, lung damage, and irritation from ozone exposure, all of which can affect driving safety. Dirty Cabin Air Filter: A dirty cabin air filter can become clogged with debris, reducing airflow, impairing cooling performance, increasing fuel consumption, and causing noise. It can also shorten the lifespan of the air conditioning system. Residual contaminants on the filter can breed bacteria and mold, posing health risks to passengers and potentially leading to serious illnesses. Air Filter: Also known as an air cartridge or air cleaner, it is a filter used in engineering vehicles, automobiles, agricultural machinery, laboratories, sterile operating rooms, and other precision environments. Function of the Air Filter: It filters airborne particles, ensuring clean air enters the cylinders and preventing dust from being sucked into the engine, which can accelerate wear on piston assemblies and cylinders. Dirty Air Filter: Using a dirty air filter while driving can restrict engine airflow, leading to incomplete fuel combustion, unstable engine operation, reduced power, and increased fuel consumption. Therefore, it is essential to keep the air filter clean or replace it promptly.
How often should the air filter and cabin air filter be replaced? Having driven for over a decade, I believe this shouldn't be a one-size-fits-all approach. The air filter primarily protects the engine's air intake. My recommendation is to inspect and replace it every 10,000 to 15,000 kilometers, especially when driving in dusty areas like rural dirt roads or sandy regions where the filter can clog easily, affecting engine combustion efficiency and increasing fuel consumption. The cabin air filter relates to interior air cleanliness – I prefer replacing it annually, particularly during spring and autumn when pollen levels are high, as this reduces allergens and makes breathing more comfortable while driving. Don't forget to check your maintenance manual, as recommendations may vary between vehicles. These are simple DIY replacements – don't delay too long to avoid potential engine issues.
