What needs to be replaced when the car reaches 20,000 kilometers?

2 Answers
SanJulianna
07/25/25 3:07pm
When the car reaches 20,000 kilometers, it is necessary to replace the cabin air filter and oil filter, perform front and rear tire rotation, and carry out four-wheel alignment and tire dynamic balance. Additionally, the brake pads should be inspected and replaced if necessary. After replacing the brake pads three times, the brake discs will need to be replaced. The 20,000-kilometer maintenance is the car's third scheduled service. The oil filter prevents impurities from mixing with the engine oil, which can cause oxidation and the formation of sludge that clogs the oil passages. The air filter's function is to block dust and particles that the engine might inhale during the intake process. If the filter is not cleaned regularly, it can lead to dust entering the engine, causing abnormal wear on the cylinder walls.
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StRachel
08/11/25 9:21pm
When the car reaches 20,000 kilometers, I usually do a comprehensive maintenance, focusing on changing the engine oil and oil filter. After all, the lubrication effect of the oil deteriorates with prolonged use, which can easily damage the engine. The air filter also needs to be checked and replaced. If you usually drive in dusty areas where it gets severely clogged, replacing it can slightly reduce fuel consumption. The cabin air filter should not be overlooked either—when dirty, it affects the air quality inside the car. I generally replace it directly to ensure healthy breathing. I also ask the mechanic to check the brake pad wear and tire pressure, as safety comes first. Don’t mind spending a little money now, because repair costs will be much higher if the car breaks down later. This kind of maintenance, done every six months, saves both hassle and money while extending the car’s lifespan.
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