How often should the cabin air filter be replaced?
2 Answers
The cabin air filter typically needs to be replaced every 10,000 to 15,000 kilometers driven. Consequences of a dirty air filter: 1. Insufficient air intake; 2. Incomplete fuel combustion, leading to unstable engine operation; 3. A muffled engine sound when continuously pressing the accelerator pedal; 4. Sluggish acceleration response with thick, black exhaust emissions. 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 draws in a large amount of air containing numerous dust particles. Without filtration by the air filter, this can accelerate wear on the piston group and cylinder. If larger particles enter between the piston and cylinder, it can cause cylinder scoring.
How often should the cabin air filter be replaced? Based on my years of driving experience, this is quite flexible with no fixed answer. Generally, I replace it every 1 to 2 years, but it really depends on your driving environment. If you live in a heavily polluted or dusty urban area where the filter clogs easily, you might need to replace it annually. In suburban areas with cleaner air, it can last two years. Mileage is another factor—when I drive more, I check it every 20,000 km; if I drive less, I go by time. The key is regular inspections, like having a technician check during maintenance. A dirty filter causes odors or weak airflow, affecting cabin air quality and cooling efficiency. I always replace mine in spring since winter heating accumulates dust, preparing for a fresher summer drive. Don’t cheap out on low-quality filters—investing in better ones ensures durability and health benefits.
