What maintenance items should be done for a car at 40,000 kilometers?
2 Answers
At 40,000 kilometers, the maintenance items for a car include changing the engine oil and oil filter, as well as replacing the air filter, cabin air filter, and fuel filter. Additionally, it is necessary to check various fluids, the battery, brake pads, and tires. The specific maintenance details are as follows: Air filter and cabin air filter: Check whether they need to be replaced. If they are not severely dirty, cleaning them may allow continued use. If they are heavily soiled, they must be replaced promptly. Fuel filter: Many car models require the fuel filter to be replaced at 40,000 kilometers. Key fluid checks: Fluids such as coolant, brake fluid, and transmission fluid generally need to be replaced. Battery: For most car models, the battery should be replaced promptly when the vehicle reaches 40,000 kilometers. Check brake pads and tires: Under normal circumstances, these do not need to be replaced at 40,000 kilometers, but if any abnormalities are detected, they should be replaced immediately.
My car just hit the 40,000-kilometer mark last year, and I specifically researched the maintenance checklist. The 40,000 km service is a mid-term maintenance milestone. At that time, changing the engine oil, oil filter, cabin air filter, and engine air filter was essential – especially in areas with poor air quality where filters need more frequent replacement. Brake fluid must be tested for water content; if it exceeds 3%, replacement is mandatory as it directly affects braking safety. Spark plugs should be replaced at 40,000 km if they're nickel alloy, otherwise poor ignition will increase fuel consumption. A wheel alignment and tire balancing are strongly recommended to prevent uneven tire wear. The dealership also recommended changing the coolant, but this can be postponed if the freezing point test meets standards. Finally, don't overlook basic inspections like all vehicle lights, chassis bolts, and tire wear – these will give your beloved car a second lease on life.
