What Maintenance Does a 4-Year-Old Car Need?
3 Answers
A car that has been in use for 4 years requires a major maintenance service, involving the replacement of several components such as engine oil, the three filters (air filter, oil filter, and fuel filter), cabin air filter, brake fluid, coolant, transmission fluid, and spark plugs. Among these, brake fluid and transmission fluid are particularly crucial. Below is a detailed introduction to car maintenance items: 1. Engine Oil and Oil Filter Replacement: This primarily pertains to the lubrication system's maintenance. The main function of the lubrication system is to effectively lubricate various components of the car's engine to prevent excessive wear. The oil filter's role is to remove various impurities from the engine oil, ensuring the proper functioning 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 undergo maintenance every 5,000 kilometers. 2. Filter Replacement: The air filter's function is 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 fuel filter is typically replaced after driving 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 part of the routine inspection items during regular maintenance, and their servicing depends on usage conditions.
My car has been running for four years now, and based on my experience, it's time for a major service. The engine oil must be changed as prolonged use leads to carbon buildup which harms the engine, and the filters should also be replaced to ensure smooth air intake. Check the tires for wear and pressure, and replace them if they cause instability at high speeds—it's crucial for driving safety. If the brake pads are heavily worn and squeaking, replace them immediately; don't skimp on small expenses and risk major issues. The coolant might have expired or degraded, potentially corroding internal components, so it's recommended to replace it every two years—time for a fresh batch. Also, clean the air filter to reduce dust and keep the air fresh. Finally, take it to a professional shop for a comprehensive check-up, including the suspension, battery, and lights. Spending a few hundred now can prevent major repairs later, keeping the car running smoothly for several more years. Regular maintenance makes the car more durable and hassle-free.
As a novice who just bought a car four years ago, I've learned that maintenance really can't be delayed. Engine oil and filters are must-change items, and a single change can easily last half a year. Tires need careful inspection for wear and pressure, and brake pads must be replaced if they're worn thin—otherwise, stopping becomes unreliable. Coolant turns acidic over time and damages the engine, so it must be replaced. A dirty air filter can cost you extra fuel, so swap it out. Old spark plugs affect ignition and should be checked too. If minor issues are beyond your DIY skills, head to the 4S shop for a package deal that includes electrical and AC diagnostics—spend a little for peace of mind and safe driving. Safety first!
