Generally speaking, the air filter is replaced every 10,000 kilometers or 6 months, one at a time. The maintenance intervals stipulated by different car manufacturers are not exactly the same. The specific replacement intervals are subject to the requirements of the car manufacturers.

Air filter replacement cycle:
1. The replacement cycle of automobile air filter elements is generally 20,000 kilometers or half a year;
2. If the owner is driving at high speed for a long time, the replacement period can be extended appropriately;
3. If you often drive on some roads with poor road conditions, you must replace it once within 10,000 kilometers;

The steps for most car replacement are as follows:
1. The filter element of the air filter is installed in the housing of the air filter, which is mostly cylindrical black plastic products;
2. Remove the hooks around the air filter housing and remove the upper cover of the air filter to see immediately;
3. This is the filter element of the air cleaner. After long-term use, the filter element gradually becomes dirty, and finally becomes completely black;
4. If it is a dry filter element, you can tap the filter element gently on the ground to knock off the dust. If it is a wet filter element, it can be cleaned;
5. Reinstall the filter element into the housing of the air cleaner. If the filter element is too dirty, it can only be replaced with a new one. Reinstall the upper cover of the air filter. As long as the filter element is cleaned, the engine performance can be improved and fuel consumption can be reduced.