The air filter is one of the important components of the engine system, its function is to remove sand and dust that flow into the engine intake system, maintain the engine's cylinders, pistons, and piston rings, and extend the engine's service life. Dust in the air is the main source of wear and tear on cylinder liners, pistons, piston rings, valves, valve guides, and other moving parts of internal combustion engines. The most important task of a dry air filter is to ensure sufficient protection for the internal combustion engine to avoid wear and tear caused by certain particles of dust.

After using the air filter for a certain period of time, the filter element will become dirty, and the intake resistance of the filter will also increase. When the intake resistance of the air filter increases to greater than the final resistance, the internal combustion engine will produce problems such as exhaust smoke and insufficient power due to insufficient air supply. Users can determine the blockage of the air filter by observing the maintenance indicator installed on the air filter. Once there is a blockage in the air filter, it should be stopped immediately to clean or replace the filter element. How to clean or replace the air filter: Remove the main filter element from the air filter housing; Gently tap the end cover of the filter element to shake off the dust on the filter element; Blow dry compressed air with a pressure not exceeding 0.5MPa from the inside out; After cleaning the dust 5 times, the main filter element should be replaced together with the safety filter element; When the filter element is found to be damaged, it should be replaced; For air filters with dust collection boxes, the dust in the boxes should be cleaned thoroughly.

Air filter maintenance and repair
1. Clean the filter yourself and open the front hood, where there will be a black square or rectangular box. Then there is a large Submarine snorkel connected to the throttle valve. There are some screws and some clips on top. It is easy to open and remove. For general cleaning, just blow off the dust. If it is too dark or has been used for a long time, it is recommended to replace it. When installing, it is also necessary to clean the air and blow it inside first.
2. Regularly cleaning the air filter or replacing the filter element is a very precise component of a car engine, and even the smallest impurities can damage the engine. Therefore, before air enters the cylinder, it must first pass through the fine filtration of the air filter before entering the cylinder. The air filter is the guardian angel of the engine, and the condition of the air filter is related to the lifespan of the engine. If a dirty air filter is used during driving, it will cause insufficient intake of air into the engine, incomplete fuel combustion, unstable engine operation, decreased power, and increased fuel consumption. Therefore, cars must keep their air filters clean. Under normal road conditions, the air filter must be cleaned and maintained when driving 7500-8000km. The maintenance interval should be correspondingly shortened in areas with high levels of sand and dust. Dry air filters are widely used in new passenger cars. The filter element of the dry air filter is made of resin treated microporous filter paper, which has the characteristics of good filtration effect and easy maintenance. Due to different vehicle models, their structural shapes may differ, but their maintenance methods are basically the same. When maintaining it, it should follow the usage mileage specified by the automobile manufacturer.