How often should the air filter of a diesel vehicle be replaced?

1 Answers
KendraMarie
07/29/25 11:20pm
According to the vehicle's maintenance manual, it should be replaced every 10,000-20,000 kilometers or once a year. Cleaning the air filter can reduce the formation of throttle sludge. The function of the air filter: to filter out particulate impurities in the air, ensuring that sufficient clean air enters the cylinder and preventing floating dust in the air from being sucked into the engine, which accelerates the wear of the piston group and cylinder. The position of the air filter element in a vehicle is determined by the intake form and the engine structure. It is generally located in the air filter on the engine intake pipe. There are two types of air filters in vehicles: dry and wet. Dry filters are made of paper or organic materials, while wet filters are made of metal mesh. Air filter: It is a type of filter, also known as an air filter cartridge, air cleaner, or style. It is mainly used in engineering vehicles, automobiles, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms as an air filter. During operation, the engine sucks in a large amount of air. If the air is not filtered, the suspended dust in the air will be sucked into the cylinder, accelerating the wear of the piston group and cylinder. Larger particles entering between the piston and cylinder can cause severe cylinder scoring, especially in dry and sandy working environments. The air cleaner is installed in front of the carburetor or intake pipe to filter out dust and sand particles in the air, ensuring that sufficient and clean air enters the cylinder. Using a dirty air filter while driving can cause insufficient engine intake, incomplete fuel combustion, leading to unstable engine operation, reduced power, and increased fuel consumption. Therefore, the vehicle must maintain a clean air filter. The vehicle air cleaner is a device that removes particulate impurities from the air, consisting of one or several air filter components. Its main function is to filter out harmful impurities in the air entering the cylinder to reduce early wear of the cylinder, piston, piston rings, valves, and valve seats. Therefore, before air enters the cylinder, it must pass through the fine filtration of the air cleaner. A dirty air filter can cause poor engine performance, excessive fuel consumption, and engine damage. When inspecting the air cleaner, if it is found to have little dust and minor blockage, it can be cleaned by blowing compressed air from the inside out and continue to be used. A heavily soiled air filter should be replaced promptly.
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