
Here are the parts that need to be replaced during the second of a car: 1. Engine oil and oil filter; 2. Air filter; 3. Fuel filter; 4. Transmission oil; 5. Cabin air filter. The following items need to be inspected during the second maintenance: 1. Spark plugs, brake fluid, throttle valve; 2. Fuel injectors, tires and braking system, engine belt; 3. Performance of headlights, warning lights, turn signals and car horn. Extended information: The second maintenance of a car refers to secondary maintenance or secondary service. Car maintenance refers to the preventive work of regularly inspecting, cleaning, supplying, lubricating, adjusting or replacing certain parts of the car, also known as car servicing.

The second typically requires changing the engine oil and oil filter, which is the most basic. My car is a compact model, and the mileage during the last second maintenance was around 5,000 kilometers. The mechanic at the repair shop said it's also necessary to check the air filter, and if it's too dirty or clogged with dust, it should be replaced as well. Additionally, as the engine runs for a long time, the oil thickens, affecting lubrication, so regularly changing the oil can protect the engine's lifespan. It also involves inspecting or replacing the fuel filter to prevent impurities from entering the fuel injection system. Other parts such as brake pads, tire wear, and coolant may also need replacement based on the inspection results. I recommend not just replacing parts but also conducting a comprehensive check of the lights, suspension, and battery to ensure daily driving safety. In short, the second maintenance is not just about replacing parts; it involves the overall health maintenance of the vehicle.

The second mainly involves changing the engine oil and oil filter, which are the key components. The engine oil is responsible for lubricating the engine parts, and over time it becomes black and thick, reducing efficiency; the oil filter removes impurities, and if not replaced, it may clog the oil passages. The air filter also often needs replacement to maintain clean air intake, otherwise it affects fuel consumption and power. I remember last time during maintenance, the technician also suggested checking the cabin air filter, saying it's particularly important to pay attention to during seasonal changes. Some vehicles may require spark plug replacement or transmission fluid inspection depending on the condition. The whole process is simple, but don't slack off, as these small parts are inexpensive but have a significant impact. For example, a dirty air filter increases the engine's burden, and vehicles that rarely drive on highways should replace it promptly. Spending a little money on regular second maintenance is more cost-effective than major repairs.

The second typically involves replacing three main components: engine oil, oil filter, and air filter. Engine oil usually has a lifespan of 5,000 kilometers or six months. Deteriorated oil can lead to insufficient lubrication and damage the engine. The oil filter removes contaminants from the oil, while the air filter ensures clean air intake. Additionally, the cabin air filter and coolant may need inspection. Since I often drive my SUV on highways, I always ensure all these parts are replaced during the second maintenance to avoid breakdowns. The repair shop will also check the vehicle's condition to determine if the fuel filter or tires need replacement. Remember, cutting corners on the second maintenance may save small costs but lead to bigger expenses.

The parts replaced during the second vary by vehicle model, with the core tasks for most cars being oil and oil filter changes. Engine oil has a short shelf life, and failure to replace it can lead to sludge buildup and engine damage. The oil filter captures engine wear debris and is prone to clogging. The air filter is also crucial; in urban traffic with heavy dust, it needs replacement sooner to prevent loss of acceleration. On a tight budget, prioritize these three items—other fluids like coolant or brake fluid can wait until the next service. I also recommend paying attention to the cost of small parts; for instance, some brands offer affordable and practical air filters that you can replace yourself. Post-second maintenance, fuel efficiency noticeably improves—don't overlook this.

The parts that need to be replaced during the second include engine oil and oil filter, which should never be skipped. Expired engine oil can cause severe engine wear, and I once had to pay over a thousand yuan extra for repairs because of this. Replacing the oil filter is simple, and failing to do so allows impurities to circulate back and damage the engine. The air filter should be changed frequently due to dust accumulation, especially before long trips to ensure smooth airflow. The fuel filter may also be inspected, and if it's clogged with impurities, it should be replaced. I usually take the opportunity during the second maintenance to check the tires and brakes, as replacing these parts takes little time and is cost-effective. Regular maintenance ensures your car lasts longer.


