What Does the First Maintenance of a Sedan Include?

[StStephen]

The first maintenance at a 4S shop includes the following aspects: changing the engine oil and oil filter, cleaning the air filter; checking the levels of various fluids to ensure they are normal, inspecting the generator belt and wiper blades for any damage; checking tire pressure for normalcy, and looking for any uneven wear, bulges, or damage; inspecting the chassis, including: brake pads, brake discs, connecting rods, ball joints, CV joints, for any scratches, etc.; checking all switches in the vehicle; ensuring all lights are functioning properly. Estimated time: Completing all tasks takes about 2 hours. Items to bring for the first maintenance include: driver's license; maintenance manual; warranty manual; owner's ID card; vehicle registration certificate; vehicle purchase invoice, to the designated first maintenance facility for the vehicle. Note: Make an appointment with the 4S shop in advance. The first maintenance refers to the initial maintenance after a new car has been driven, with the specific time varying by vehicle, generally after driving 1,000 to 3,000 kilometers. The car needs to undergo the first maintenance in a timely manner, neither early nor delayed. The completion of the first maintenance marks the end of the car's break-in period, allowing it to be driven under standard load and normal speed as required by the vehicle. The first maintenance time is calculated from the date of vehicle pickup. There are two indicator values for the first maintenance time: mileage and time. Whichever comes first serves as the standard. The following inspections and replacements must be completed during the first maintenance of a new car: changing the oil, cleaning the three filters, namely the oil filter, fuel filter, and air filter; checking the coolant level to ensure it is normal; inspecting the vehicle's brake and clutch fluid levels; checking the power steering fluid level for normalcy and looking for any oil leaks at the pipe connections; the technician should inspect the generator, air conditioning, water pump, and belts for aging and tension; checking tire pressure and wear condition, inflating the tires, or performing tire rotation if there is wear. When changing the oil, the oil filter must also be replaced. The choice of oil must refer to the "Vehicle Use and Maintenance Manual," as different vehicle models specify different oil grades. Maintenance precautions: Do not wash the interior of the car body with water: Many people clean their cars themselves during holidays, washing the body with water and scrubbing with a cloth. Here, it is important to note that the interior of the car body does not need to be washed directly with water. If the floor mats are dirty, you can use a vacuum cleaner or take them out, scrub them with a brush and detergent, dry them, and then put them back. There are many drainage holes under the rubber mats on the cabin floor. If water enters, it will not dry but will flow through these holes to areas like the gearbox, causing erosion and corrosion. A better approach is to clean with a vacuum cleaner and then wipe with a cloth to prevent water accumulation. Do not mix different brands of antifreeze: When the antifreeze in the car is low, it is recommended to drain the antifreeze first and then add the same brand of antifreeze. Since different brands of antifreeze have vastly different chemical properties, various types of corrosion inhibitors can corrode others. Different brands of antifreeze use different corrosion inhibitors, so they should not be mixed to avoid unnecessary trouble. Do not lubricate tire bolts and nuts: When the bolts on a moving car rust, they are often oiled to function properly again. To prevent the bolts and nuts on the wheels from rusting, some people apply lubricant to them, but this can pose a safety risk. When the car is driven at high speed, the bolts and nuts may loosen or even fall off, leading to driving malfunctions. Do not press the accelerator when starting an EFI car: The starter of an EFI car is different from that of a conventional car. Its fuel injection control device can automatically adjust the fuel supply based on the starter's temperature and operating conditions, ensuring a smooth start.