What are the items included in the second maintenance of a car?
2 Answers
Secondary maintenance mainly includes the following items: 1. Measure the cylinder pressure of the engine and adjust the valve clearance; clean various filters, oil pan, and the assembly of the oil collector. 2. Check and adjust the wear and clearance of connecting rod bearings; inspect and tighten the bolts of the front and rear engine brackets. 3. Check and adjust the brake, perform tire rotation; inspect the clutch and adjustments of other assemblies. 4. Extension: Secondary maintenance is generally performed when the car has traveled 6,000~8,000 km. The purpose of secondary maintenance is to ensure that the vehicle maintains good operating performance for a long period of time thereafter.
As someone who has driven for several years, I think the second maintenance is quite important. The key is changing the engine oil and oil filter to keep the engine running smoothly. It's also essential to check tire pressure and wear, and ensure the brake pads aren't too thin, otherwise braking performance suffers. Testing the lighting system, including headlights and turn signals, ensures nighttime safety. I always have them check the air filter—city driving gathers a lot of dust, and a dirty filter affects air intake. Suspension system inspection prevents excessive bumpiness, and a battery test prevents unexpected power loss. Regular second maintenance improves fuel efficiency and extends engine life. I recommend going to a 4S shop or a trusted repair shop for peace of mind.
