What maintenance is required for a new car with over 30,000 kilometers?

[NaomiLynn]

For a new car with 30,000 kilometers, the following maintenance is required: 1. Engine oil and four filters: The four filters include the engine oil filter, air filter, fuel filter, and cabin air filter. The engine oil filter needs to be replaced every maintenance, the air filter should be replaced every 10,000 to 15,000 kilometers, and the fuel filter is recommended to be replaced every 30,000 kilometers. 2. Throttle body cleaning: Over time, the throttle body accumulates carbon deposits at the throttle valve, leading to reduced airflow. This can cause slight idle instability, idle vibration, and weak acceleration, indirectly increasing fuel consumption. 3. Spark plugs: Although spark plugs at 30,000 kilometers have not completely lost their ignition performance, their efficiency has significantly decreased. Reduced ignition performance directly affects idle vibration, engine misfire, and weak acceleration. The increased engine load due to poor ignition is also a factor in higher fuel consumption. 4. Air conditioning cleaning: Cleaning the air conditioning system removes dust, dirt, and provides a sterilizing effect. This service is optional.