What maintenance items are required at 45,000 kilometers?
2 Answers
Here is a detailed introduction to the maintenance items at 45,000 kilometers: 1. Replace the air filter: After the car has traveled 30,000 kilometers, the air filter will accumulate a significant amount of dust and oil stains. Moreover, the performance of the air filter will be greatly affected at this mileage. Therefore, it is advisable to replace it to ensure optimal performance. 2. Replace the cabin air filter: The cabin air filter contains activated carbon, which can adsorb fine particles. However, the activated carbon gradually diminishes over time and with usage frequency. A dirty cabin air filter can lead to reduced cooling efficiency and unpleasant odors. 3. Clean the throttle body: The responsiveness of the car's acceleration is closely related to the cleanliness of the throttle body. During the operation of an electronic fuel injection engine, a small portion of the combustion byproducts in the cylinders can form carbon deposits at the throttle body through the intake valves and intake pipes. Over time, these deposits accumulate and form dirt, increasing the resistance of the throttle body's operation and causing issues such as unstable engine idling. Hence, regular cleaning of the throttle body is necessary. 4. Replace the coolant: Generally, it is recommended to replace the coolant every 20,000 kilometers or once a year. This helps to raise the boiling point, prevent scale and rust formation, enhance cooling efficiency, lubricate the water pump, and avoid or eliminate engine damage caused by instant high temperatures due to air bubbles.
When my car reached 45,000 kilometers, I took it to the repair shop for maintenance myself. They changed the engine oil and oil filter, saying it should be done every 5,000 kilometers, and fresh oil makes the engine run smoother. The air filter was extremely dirty, so they cleaned it too—if it gets too clogged, it affects air intake and increases fuel consumption. Tire rotation is essential to prevent uneven wear, and the tire pressure was adjusted to the standard value. They also measured the brake pad thickness, which fortunately didn't need replacement yet. The spark plugs were inspected, as some cars might need new ones at this point to avoid ignition issues. They tested the brake fluid's water content and coolant level, both of which were fine, but they reminded me to check again next time. These tasks may sound like a lot, but addressing them early saves hassle and prevents breakdowns. Personally, I recommend learning some basics, like checking tire pressure or using a coin to measure tread depth—simple and practical, and it can save money on dealership visits.
