What maintenance is needed at over 40,000 kilometers?
2 Answers
For a car that has traveled over 40,000 kilometers, the following maintenance items are required: 1. Replace the air filter and cabin air filter: The air filter and cabin air filter should be replaced every 40,000 kilometers or every two years. In areas with poor climate conditions and high levels of dust, this should be shortened to once a year. 2. Replace the fuel filter, brake fluid, and transmission fluid: Taking Japanese and Korean cars with shorter maintenance cycles as an example, a "major maintenance" is required every 40,000 kilometers. In addition to the replacement parts mentioned above, the fuel filter and brake fluid also need to be replaced. For automatic transmission models, the transmission fluid needs to be replaced as well. For rear-wheel-drive vehicles, the differential oil also needs to be replaced.
After driving for so many years, I always make sure to do a thorough maintenance check every 40,000 kilometers. First and foremost, the engine oil and oil filter must be replaced—over time, the oil thickens and affects engine smoothness. The air filter also needs to be replaced; otherwise, dust buildup can clog the intake. Don’t overlook the tires—check their wear and consider rotating them if necessary, which extends their lifespan and improves fuel efficiency. The braking system is critical: inspect the pads and rotors for wear, and replace the brake fluid if it’s dirty to avoid issues in emergencies. Spark plugs should also be checked and replaced if worn out to ensure proper ignition. Additionally, check the condition of the coolant and transmission fluid—some cars recommend replacement at this interval. Finally, run a full vehicle scan, including lights and wipers. After all this, the car runs smoothly and avoids costly major repairs. Spending time on maintenance is worth it!
