What needs to be replaced for a 15,000-kilometer maintenance?

[SarahMarie]

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.

[LaAdalynn]

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.

[MacOmar]

As a father with children, safety is always my top priority. During the 15,000 km maintenance, I made sure to get the oil and oil filter changed to prevent engine failure and unexpected breakdowns. The air filter was also replaced to avoid dust buildup affecting engine health. Special attention was given to the braking system—brake fluid levels were sufficient, and the brakes were responsive and reliable. The tires were rotated to ensure solid traction in rainy conditions. A bit of coolant was topped up to prevent engine overheating risks. These simple steps, though small in cost, ensure safe travels for the whole family. The mechanic also reminded me to check for loose chassis bolts to maintain driving stability. The total cost was less than 300 yuan—nothing beats peace of mind.

[McTeagan]

As a young car owner who just bought a car a little over a year ago, I wanted to save money without cutting corners during my 15,000 km maintenance. Engine oil and oil filter are the core items that must be replaced; otherwise, it could damage the engine, leading to even costlier consequences. The air filter depends on how dirty it is—I checked and saw little dust, so I saved a few dozen yuan by not replacing it. Tire rotation was done for free to ensure even wear. Other items like brake pads I visually inspected—they had sufficient thickness, and the coolant level was fine according to the markings. In total, I only spent around a hundred yuan on engine oil, and it was done in half an hour. This smart maintenance approach saves money while keeping the car in good condition, making it hassle-free and worry-free.

[KateFitz]

I usually enjoy studying some basic car knowledge, and during the 15,000 km maintenance, I paid close attention to the details. Engine oil and the oil filter must be replaced, as impurities in the old oil can clog the oil passages and reduce performance. After replacing the air filter, airflow becomes smoother, reducing engine strain. Tire rotation is crucial to prevent uneven wear that could lead to handling imbalance. I checked the brake fluid and coolant levels, topping them up if low to ensure proper brake response and cooling. Although the repair shop recommended additional services, following the manual's 15,000 km guidelines is sufficient. Spending a little time on these now can help avoid future expenses.