At how many kilometers should a car undergo a major maintenance?
3 Answers
Generally, a vehicle requires a major maintenance service after reaching 30,000 kilometers. Here is the relevant information: 1. Major maintenance builds upon minor maintenance, adding the replacement of the air filter and fuel filter to the standard oil and oil filter change. These two filters serve to remove dust from the air and impurities from the fuel, respectively. The proper operation of the engine relies on the appropriate use of various maintenance products. Failing to replace the oil and three filters in time once they reach their service limits can adversely affect engine performance. 2. Currently, most car engines utilize a dry-type air filter with a paper filter element, which is lightweight, cost-effective, easy to replace, and highly efficient. It is generally recommended to clean the filter every 5,000 kilometers. During cleaning, the filter element should be removed and gently tapped on its end face, then blown from the inside out with compressed air to remove dust. Avoid washing it with gasoline or water.
I drive quite a lot and have discussed maintenance experiences with many mechanics. Generally, it's safest to perform a major service around 60,000 kilometers when the entire vehicle system needs a comprehensive check. Common replacement items include all fluids (engine oil, brake fluid, transmission fluid), four filters (air filter, cabin air filter, oil filter, fuel filter), and core components like spark plugs. But honestly, the actual interval depends on the car's condition – my long-distance vehicle needed it at just over 50,000 km. I recommend checking your manual before servicing, as requirements vary significantly between models. Don't just follow dealership recommendations.
After repairing cars for over a decade, I've noticed many car owners are confused about major maintenance intervals. Generally, at 60,000 kilometers, it's time for serious work - the chassis suspension, steering system, and braking system need thorough inspection. Special attention should be paid to the condition of three oils and two fluids, particularly automatic transmission fluid and coolant, which typically reach their lifespan at this mileage. If the spark plugs are original nickel alloy ones, they should be replaced too, otherwise ignition efficiency will be affected. Here's a common misconception to clarify: don't just rely on the odometer reading. If the vehicle frequently operates in harsh road conditions or makes frequent short trips, consider major maintenance as early as 50,000 kilometers.
