What needs to be replaced for a 15,000-kilometer maintenance?
2 Answers
A 15,000-kilometer maintenance requires replacing the engine oil, oil filter, air filter, and cabin air filter. Engine oil is the lifeblood of the engine and is crucial for its operation. Inside the engine, oil not only lubricates but also cleans, seals, cushions, prevents rust, and dissipates heat. Without engine oil, the engine cannot function properly. Car maintenance refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting, or replacing certain components of the vehicle, also known as vehicle servicing. Modern car maintenance primarily includes the engine system (engine), transmission system, air conditioning system, cooling system, fuel system, power steering system, and other related areas. The purpose of car maintenance is to keep the vehicle clean, ensure normal technical conditions, eliminate potential hazards, prevent faults, slow down deterioration, and extend the service life.
As a regular commuter who drives daily, I remember during my last 15,000 km maintenance, the engine oil and oil filter were replaced—both are essential because dirty old oil can impair engine lubrication and accelerate wear. After the change, the car felt smoother. The air filter was also replaced; when opened, it was completely black—not replacing it would restrict airflow and increase fuel consumption. The tires were checked and the rear ones were rotated to even out wear and extend their lifespan. The brake pads were measured, and the front ones still had half their life left. The coolant level was topped up to prevent engine overheating. The entire process cost just over 200 yuan at the repair shop and took about an hour—totally worth it. I recommend everyone follow this mileage interval for regular maintenance—don’t skimp on small expenses now to avoid major repairs later. A car, like a person, runs happily when well-maintained.
