What are the maintenance items for a private car at 30,000 kilometers?
2 Answers
Maintenance items for a car at 30,000 kilometers include changing the engine oil, oil filter, air filter, fuel filter, cleaning the throttle body, replacing the spark plugs, etc. Some 4S shops may recommend additional maintenance items, which car owners should consider based on their own judgment and actual conditions. Changing the engine oil and oil filter is a mandatory item. Due to the harsh high-temperature and high-pressure environment inside the engine, the shelf life of the engine oil is significantly shortened, and its performance greatly deteriorates. Over time, it fails to protect the engine. The air filter should be replaced every 10,000 to 15,000 kilometers, and the fuel filter should be replaced every 30,000 kilometers. Cleaning the throttle body at 30,000 kilometers is necessary, but it is not required before reaching this mileage. By this time, a significant amount of carbon deposits will have accumulated at the throttle body, causing the throttle opening to become smaller, leading to unstable idling and sluggish acceleration. If the car owner notices a decline in the vehicle's performance during this period, they should consider inspecting the throttle body and spark plugs during maintenance. At 30,000 kilometers, the spark plugs have not completely failed, but their ignition performance has significantly deteriorated, directly affecting the engine's power, performance, and fuel consumption. If the vehicle is still running smoothly, the replacement can be delayed by another 10,000 kilometers.
After driving for so many years, I always give my car a full check-up every 30,000 kilometers, just like a physical exam. Changing the engine oil and oil filter is a must to protect the engine from wear and tear. The air filter should be inspected and replaced if dirty to prevent dust from affecting the engine's 'breathing.' The cabin air filter also needs to be replaced to keep the air inside fresh. Tires should be checked for wear and pressure to ensure good grip and stability at high speeds. The braking system must be professionally inspected, and the pads and discs should be replaced if worn—safety comes first. Spark plugs might need replacement at this point, especially for older cars, as faulty ignition can lead to higher fuel consumption. Coolant, battery, and lights should also be checked, along with the chassis and suspension for any looseness. Wiper blades and seat belts should be inspected as well. After such maintenance, the car runs much smoother, fuel efficiency improves, and its lifespan is extended, making it more reliable and worry-free.
