What are the steps to replace the air filter?
3 Answers
Replacing the air filter involves the following steps: 1. Open the engine hood; 2. Remove the air filter element; 3. Thoroughly clean the air filter box; 4. Install the prepared air filter. The functions of the air filter are: 1. To ensure the air filter fits tightly against the housing, preventing unfiltered air from entering the cabin; 2. To separate dust, pollen, and solid particles from the air; 3. To absorb moisture, soot, ozone, odors, carbon oxides, SO2, CO2 from the air, providing strong and lasting moisture absorption; 4. To prevent car windows from fogging up, ensuring clear visibility for the driver and safe driving; 5. To maintain clean air in the passenger compartment and prevent bacterial growth.
I just helped my neighbor replace the air filter last week. Open the hood and locate that black plastic square box, usually near the engine. Use a screwdriver to loosen the fixing screws, or gently pry open for models with clips. Don't rush to throw away the old filter when removing it - check how much dust and leaves are clogged on it first, as this helps determine the next replacement time. Cleaning sand particles in the filter box is crucial; last time I found a thick layer of sand accumulated at the bottom. When installing the new filter, pay attention to align the arrow direction with the airflow direction - installing it backwards affects filtration efficiency. Finally, close the box tightly and start the engine to listen if the intake sound is smooth. The whole process takes about 20-30 minutes. Beginners are advised to prepare a 10mm socket and gloves.
I was so nervous the first time I changed the air filter by myself, but now I'm quite skilled at it. First, prepare the new filter and basic tools, then wait half an hour after turning off the engine to let it cool down. Open the hood and locate the air filter box, usually near the windshield. When unscrewing the bolts or releasing the clips, remember their positions to avoid reassembly issues. Upon removing the old filter, you'll find it clogged with willow catkins and dead insects. Wipe the inside of the box clean with a damp cloth, but avoid letting water seep into the intake pipe. When installing the new filter, place the patterned side facing down and press firmly on all four corners to ensure a tight seal. Pay special attention to the rubber sealing strip for any damage, as aging can cause dust leakage. When reassembling the box, don't overtighten the screws to prevent plastic cracking. After the replacement, stepping on the gas pedal makes the engine feel like it's breathing more freely.
