How to Replace the X-Trail's Filter?
3 Answers
X-Trail filter replacement should be performed according to the relevant manual. Below is the classification of automotive filters: 1. Air Filter. The air filter is installed in front of the carburetor or intake pipe to filter out dust and sand particles from the air, ensuring that sufficient and clean air enters the cylinder; replacement is recommended at approximately 20,000 kilometers. 2. Oil Filter. The oil filter is located in the engine lubrication system. Its function is to filter out harmful impurities from the oil in the oil pan, supplying clean oil to moving parts such as the crankshaft, connecting rod, camshaft, turbocharger, and piston rings, providing lubrication, cooling, and cleaning, thereby extending the lifespan of these components; replacement is recommended at approximately 5,000 kilometers. 3. Cabin Air Filter. Commonly known as the pollen filter, the cabin air filter's function is to filter the air entering the vehicle interior from the outside, improving air cleanliness; replacement is recommended at approximately 10,000 kilometers. 4. Fuel Filter. Its function is to filter out harmful particles and water in the engine fuel system to protect components such as the fuel pump, fuel injector, cylinder liner, and piston rings, reducing wear and avoiding blockages. It also filters out iron oxide contained in the fuel. The replacement cycle should follow the vehicle maintenance manual.
Replacing the X-Trail's air filter is actually quite simple, and I often DIY it myself. The first step is to park the car on a flat surface, turn off the engine, and let it cool down to ensure safety. Open the engine hood and locate the rectangular or square filter box near the windshield, secured by several plastic clips or screws. Use your hands or a screwdriver to release the clips and remove the old filter, then wipe away any dust or debris inside the box to avoid contaminating the new part. When inserting the new filter, pay attention to the direction—the arrow usually indicates the airflow direction to prevent incorrect installation. Gently place it in, then secure the cover or tighten the screws. The whole process takes about 10 minutes. I replace it every 10,000 kilometers to save money, ensure smooth engine air intake, and reduce fuel consumption. A compatible filter costs just a few dozen yuan, and you can easily find the right part by searching online for the X-Trail model.
Changing the air filter for the X-Trail doesn't have to be complicated – I do it myself quickly every time. The key steps start from the passenger seat: open the door, remove the damper rope or screws under the glove box, and carefully take out the old filter without damaging other plastic parts. After wiping the dust inside the box, insert the new filter, ensuring the direction is correct to avoid affecting airflow. Then, simply reattach the glove box tightly. The whole process takes just 5 minutes, costing little but bringing fresh air inside the car while preventing odors and bacterial growth. I recommend checking and replacing it every 12 months or 15,000 km, adjusting the frequency based on weather changes to extend the AC's lifespan. The parts are affordable, and opting for brand-compatible filters offers extra peace of mind.
