What does a major car maintenance include?
2 Answers
Major car maintenance includes the following items: 1. Oil change. Changing the oil is a must-do item for major maintenance. Engine oil lubricates and reduces friction, aids in cooling, seals against leaks, prevents rust and corrosion, and cushions shocks. 2. Oil filter replacement. The oil filter is replaced at the same time as the oil. The oil filter removes debris, sludge, and water from the oil, delivering clean oil to the lubrication points. 3. Air filter replacement. The air filter prevents dust and particles from being sucked into the engine during the intake process. If the filter is not cleaned for a long time, dust can enter the engine, causing abnormal wear on the cylinder walls. 4. Cabin air filter replacement. If the cabin air filter is not cleaned or replaced for a long time, the car's air conditioning system can become contaminated, reducing the performance of the cooling system and affecting the health and safety of passengers.
Last time I went for a major maintenance at 40,000 kilometers, it was much more than just an oil and filter change. The mechanic lifted the car up and first replaced the air filter and cabin air filter—these directly affect breathing health. Then, the old transmission fluid was drained and new fluid was poured in, along with replacing the fuel filter. The braking system was thoroughly inspected, with the brake fluid replaced and the brake discs and pads resurfaced. The tires were all taken off for dynamic balancing, and a four-wheel alignment was performed. Every bolt on the chassis was tightened, and even the shock absorbers were checked for leaks. Finally, carbon deposits in the throttle body were cleaned, and the spark plugs were replaced with new nickel alloy ones. All in all, over twenty items were addressed, costing more than two thousand, but the car definitely runs much smoother now.
