What are the maintenance items for a sedan at 30,000 kilometers?

[DawsonAnn]

The maintenance items for a sedan at 30,000 kilometers include: 1. Replace the engine oil, oil filter, air filter, fuel filter, and spark plugs; 2. Check whether the tire pressure is normal and whether the tires have uneven wear, bulges, or damage; 3. Inspect the car chassis, brake pads, brake discs, connecting rods, ball joints, and CV joints for scratches; 4. Check whether the levels of various fluids are normal. The benefits of maintenance include: 1. Ensuring the vehicle is in excellent performance condition; 2. Improving the vehicle's efficiency and reducing the wear of its parts and tires; 3. Enhancing driving safety; 4. Preventing potential hazards caused by vehicle issues; 5. Reducing noise and environmental pollution; 6. Keeping the vehicle's appearance clean and preventing damage.