What maintenance is required for a car after driving 15,000 kilometers?

[Russell]

For a car that has driven 15,000 kilometers, the required maintenance includes: changing the engine oil and the three filters (oil filter, air filter, and cabin air filter). The steps to change the engine oil are: 1. Start the vehicle's engine to warm it up; 2. Unscrew the oil drain bolt; 3. Remove the filter; 4. Apply new oil to the gasket of the new filter; 5. Pour the new oil into the oil pan; 6. Check for leaks under the engine, inspect the oil dipstick, and start the engine for testing. The functions of engine oil are: 1. Lubrication; 2. Assisting in cooling; 3. Cleaning; 4. Sealing and preventing leaks; 5. Rust and corrosion prevention; 6. Shock absorption, cushioning, and anti-wear.