What are the items included in a car's second maintenance?

[DeKylie]

Car's second maintenance mainly includes the following items: replace the three filters and engine oil; check whether the brake fluid, transmission oil, and power steering fluid should be replaced; inspect brake pads, tires, shock absorbers, and suspension; check spark plugs, throttle valve, and fuel supply system; perform front and rear wheel rotation and routine checks (lights, battery, etc.). Extension: 1. The scope of the second maintenance, in addition to the tasks of the first maintenance, includes checking and adjusting the working conditions of the engine and electrical equipment, dismantling and cleaning the oil pan and oil filter, checking and adjusting the steering and braking mechanisms, dismantling and cleaning the front and rear wheel hub bearings. Add lubricating oil, dismantle and inspect tires, and perform rotation, etc. The purpose is to maintain the good working performance of various parts, mechanisms, and assemblies of the vehicle to ensure their normal operation between two second-level maintenances. 2. For the car's second maintenance, there is no need for other replacements and cleaning, such as engine cleaning. It is too early to perform these items during the second maintenance, which is both a waste of money and time. Other inspection items, such as checking coolant, brake fluid, tire pressure, etc., are generally free. Note here to remind all car owners, before the second maintenance, be sure to carefully review the maintenance list, and it is recommended not to perform unnecessary items.

[DeEden]

I just had the second maintenance service for my car, which essentially revolves around three key items: Changing the engine oil and oil filter is mandatory, as the oil deteriorates over time with engine operation. The cabin air filter also needs replacement, especially after spring and summer use when it's clogged with pollen and dust. The dealership performed over 20 complimentary checks: adjusting tire pressure to standard values, tightening all chassis bolts, measuring brake pad thickness, and testing lights/wipers. I specifically watched the technician perform the computer diagnostics, which even included checking the battery health. Always bring your maintenance manual—it clearly lists the second service items. Some shops might try to upsell you on unnecessary engine flushes.

[DiKinsley]

The second maintenance service is more comprehensive than the first one. During my service last week, the technician focused on inspecting four key areas: first, they rotated the four tires to prevent uneven wear, then used a flashlight to carefully check the undercarriage for any scratches or oil leaks. The most surprising part was when they used an endoscope to examine the spark plugs and said they didn't need replacement as there wasn't much carbon buildup. The air conditioning system disinfection was definitely worth doing - there was always a slight musty smell when using the AC in summer, but it's noticeably fresher now. Before leaving, they reminded me to replace the air filter at the next service since it gets clogged easily with the poor urban air quality.

[SanDakota]

After two maintenance sessions, I've figured out a few tricks: always switch to full synthetic engine oil—it's pricier but lasts thousands of miles longer. Remember to rotate the tires front-to-back, otherwise the rear tires wear out faster and can cause skidding during turns. Once, after maintenance, I noticed the steering wheel felt lighter—turns out the mechanic had lubricated the steering system. Always check the four-wheel alignment data; many shops cut corners by only adjusting the front wheels. Lastly, make sure the mechanic cleans the sunroof drainage holes—it's hard to do yourself, and if clogged, water can leak into the car.