What maintenance is required for a car at 40,000 kilometers?

[McKate]

At 40,000 kilometers, the maintenance items required for a car include changing the engine oil, oil filter, and spark plugs, as well as inspecting the wheel hubs and brake system. Below is a detailed introduction to car maintenance items: 1. Engine oil and oil filter replacement: This is primarily maintenance for the lubrication system. The main function of the lubrication system is to effectively lubricate the various components of the car engine to prevent excessive wear. The oil filter removes various impurities from the engine oil to ensure the normal operation of the lubrication system. The oil filter should be replaced along with the engine oil during an oil change. Under normal circumstances, a car should be serviced every 5,000 kilometers. 2. Air filter replacement: The air filter functions to filter the air before it enters the cylinders, removing impurities such as dust, sand, and other foreign particles. The cleaning and maintenance of the air filter depend on the usage environment. The gasoline filter is typically replaced every 20,000 to 25,000 kilometers. 3. Spark plug replacement: Spark plugs are consumable parts and should be replaced every 20,000 kilometers. Additionally, components such as brake fluid, transmission fluid, the battery, throttle body, fuel injectors, and brake pads are all part of the inspection items during routine maintenance, and their maintenance depends on usage conditions.

[OAriana]

When my beloved car reaches 40,000 kilometers, I always conduct a comprehensive inspection, as this is the best time to prevent major issues. For instance, I strictly adhere to changing the engine oil and filters every 5,000 kilometers or six months. At this point, the oil may have accumulated metal debris, and failing to replace it promptly can increase engine wear. Brake pads and brake fluid should not be overlooked either—if they're worn thin or contain air bubbles, they need replacement. I regularly check tire tread depth and pressure, and perform tire rotation when necessary to extend their lifespan. Air filters and cabin air filters tend to accumulate dust and pollutants; replacing them ensures the car 'breathes' more smoothly. The suspension system and coolant should also be inspected to avoid future noises or overheating. Overall, spending a modest amount at a professional shop for these services can save me from future repair costs that could easily run into tens of thousands.

[EleanorRose]

When it comes to 40,000 km maintenance, from a practical standpoint, I highly recommend changing the engine oil and oil filter first, as they are crucial for engine longevity. Next, inspect the brake system to check pad wear and fluid freshness. Don’t overlook the cabin air filter—dust buildup can affect air quality inside the vehicle. Rotating the tires can balance wear and save costs. Also, consider replacing the fuel filter periodically to ensure smooth fuel delivery. A voltage check confirms battery stability, while testing the suspension and steering systems prevents vibrations. A comprehensive maintenance at this stage ensures safe driving without hidden risks. Whether you DIY or visit a shop, don’t delay.

[Olga]

For us young drivers, maintaining a car at 40,000 kilometers should be both economical and efficient. I usually start by changing the oil and filters, saving on labor costs by doing it myself when possible. For the brakes, I check the pad thickness and fluid level, replacing them immediately if they're too thin. Rotating the tires ensures even wear and extends their lifespan. Don’t forget the air and cabin filters—replacing them keeps the interior fresh. Also, check the battery voltage to avoid surprises. The key is preventive maintenance; don’t skimp on these simple tasks, as timely upkeep keeps the car running longer and smoother.