How often should the cabin air filter be replaced for Volkswagen Sagitar?

[DianaRose]

Under normal circumstances, the cabin air filter for Volkswagen Sagitar should be replaced every 30,000 kilometers. Methods to determine if the air filter is dirty are as follows: 1. Observe the engine's operating condition. If the air filter is dirty, the air intake will be insufficient, leading to incomplete fuel combustion, which causes unstable engine operation. When continuously pressing the accelerator pedal, the engine sound becomes muffled, acceleration response is sluggish, and the exhaust is thick and black. 2. Check the surface color of the air filter. If the filter paper remains gray-black after cleaning the dust on the surface, it indicates that the filter paper can no longer be used and should be replaced immediately. Here is some related information: The car's air filter is installed in front of the carburetor or intake pipe to filter the air entering the engine. During operation, the engine inhales a large amount of air, which contains many dust particles. Without filtration by the air filter, it would accelerate the wear of the piston group and cylinder. If larger particles enter between the piston and cylinder, it can cause cylinder scoring.