What maintenance is required for a new car that has run over 20,000 kilometers?

[Timothy]

After running 20,000 kilometers, the car requires primary maintenance operations, mainly based on the car's maintenance manual. Basic items generally focus on inspection and tightening, with repairs carried out as needed. Common items include changing the engine oil, oil filter, air conditioning filter, fuel filter, cleaning the air conditioning filter, and some routine inspections. Below are five key points for engine maintenance: 1. Use the appropriate grade of engine oil and change the oil and filter regularly; 2. Frequently maintain the air filter and replace it periodically; 3. Regularly clean the fuel system and replace the fuel filter; 4. Maintain the radiator cooling net periodically; 5. Replace the spark plugs at regular intervals.

[Marian]

After driving a car for over a decade, reaching the 20,000-kilometer mark, I usually focus on these key maintenance tasks: The engine oil and oil filter must be changed—it's like a heart check-up. The air filter and cabin air filter should be inspected and replaced, as air quality directly affects engine health and ride comfort. Rotate the tires and perform a wheel alignment to prevent uneven wear and extend their lifespan. Measure the brake pad thickness—it’s common for them to wear down by a third at 20,000 km. Test the antifreeze’s freezing point and brake fluid’s moisture content to prevent future issues. Also, check the tightness of chassis bolts, lighting circuits, and other systems—safety is no small matter. Remember to bring the maintenance manual, as some models have special service requirements at 20,000 km.

[LeAurora]

From a mechanical perspective, the 20,000 km maintenance shouldn't focus solely on oil and three filters - those are basic items. The key lies in inspecting the engine's intake/exhaust systems and drivetrain: throttle body carbon buildup needs cleaning, spark plug electrode gaps require measurement, and while transmission fluid doesn't need replacement, its level and turbidity must be checked. A complete brake system inspection is mandatory - insufficient caliper pin lubrication can cause brake dragging. I've encountered many owners neglecting power steering fluid and CV boot inspections, leading to noise and oil leaks later. Also, recommend replacing wiper blades as most won't last 20,000 km. Finally, plug in the diagnostic tool to read fault codes - early detection means early resolution of hidden issues.

[Ellen]

My car just passed the 20,000 km mark, and this maintenance focused on replacing both the air filter and cabin air filter – after a year of driving in Beijing's smoggy weather, the filters were shockingly black. The technician recommended full synthetic oil for turbocharged engines, which is more expensive than mineral oil but better for the engine. After rotating the tires, I immediately noticed more stable steering. Surprisingly, the brake fluid test showed excessive water content – the technician explained that frequent braking in stop-and-go traffic causes fluid to absorb moisture, and not replacing it could affect braking distance. They also adjusted the tire pressure for free, as high summer temperatures increase the risk of blowouts. Next time, I plan to replace the wiper blades myself – the dealership's quote could buy three sets.