The basic principle for selecting an air filter is that the rated air flow rate of the air filter must be greater than the air flow rate of the engine at rated speed and rated power, that is, the maximum intake volume of the engine. At the same time, under the premise of allowing installation space, it is necessary to appropriately use high capacity and high flow air filters, which helps to reduce the resistance of the air filter, increase dust storage capacity, and extend maintenance intervals.

The maximum intake air volume of an engine at rated speed and load is related to the following factors:
1. Engine displacement
2. Rated engine speed
3. The suction form of the engine. Due to the function of the turbocharger, the intake volume of a turbocharged engine is much greater than that of a naturally aspirated engine
4. Rated power of turbocharged models. The higher the degree of turbocharging or the use of turbocharged intercooled engines, the higher the rated power of the engine and the relatively larger the intake volume.

The air filter is located on the left side of the engine compartment cover:
1. Generally, inspection or cleaning is carried out after 5000 kilometers, and replacement can be considered according to the situation after 120000 kilometers. The method of replacing the air filter is not difficult to operate. If it saves time and effort to go to the 4S store, you can purchase the air filter online or in the accessory market for replacement;
2. The steps for replacing the air filter: first, open the engine compartment cover, stabilize the support rod, and locate the position of the air filter; Use a screwdriver to unscrew the screws around the upper cover of the filter. If the filter cover is fastened with a snap, loosen the snap and be careful not to let the screws or snap fall under the engine compartment;
3. After opening the cover, take out the air filter element and pay attention to the direction in which the filter element is placed when taking it out;
4. Check the filter element and clean it. If the surface of the filter element is damaged or too dirty, it is recommended to replace it; Replace the replaced filter element and place it back inside the filter, paying attention to the positive and negative directions. Place the cover, fasten the clip, and tighten the screw. The disassembly and assembly are completed.