What is the installation direction of the car air conditioning filter?
2 Answers
Car air conditioning filter installation direction is indicated by the arrow on the filter, with the arrow pointing in the direction of airflow. Below are the detailed steps for replacing a car air conditioning filter: 1. Remove the right foot outer contact cover: Unscrew the central screw of the cover with a T20 screwdriver, then push the upper and lower edges of the panel toward the front of the car with horizontal forward force. 2. Remove the steering wheel lower cover: The cover is made of black plastic, located above the foot pedal and below the steering wheel shaft, with an irregular horizontal shape. There are two large round fasteners near the driver's side edge; rotate them 180 degrees to release. Loosen the edges of the panel and remove it entirely. 3. Open the side cover of the air conditioning filter: There is a screw in the center of the air conditioning filter cover; remove it with a T20 screwdriver. After removing the screw, gently pry open the small slot below the cover and pull outward to open the cover. 4. Replace the air conditioning filter: Pull the old filter out horizontally. Note that the air conditioning filter has a specific direction—ensure it is not installed backward.
I remember when I first changed the cabin air filter, I didn't pay attention to the arrow direction. After installation, the airflow became pitifully weak with a strange odor. Later I realized the arrow indicates the airflow direction, usually pointing toward the air intake position (like outside air or blower side). Incorrect installation can lead to faster dust accumulation, clogging the filter, reducing filtration efficiency, increasing blower load, and potentially causing noise. My advice: Before removing the old filter, take a photo to remember the original arrow direction. When installing the new one, align it accordingly and ensure the sealing strip is properly compressed to prevent air leaks. Always turn off power for safety before starting. Check your owner's manual for specific model details. Replace it every six months to maintain fresh cabin air. That little arrow matters - be smarter than me and don't repeat my mistake.
