Is the purchase invoice required for the first maintenance?

[SanSophia]

The purchase invoice is required for the first maintenance. The items needed for the first maintenance include: driver's license; maintenance manual; warranty manual; owner's ID card; vehicle's registration certificate; vehicle's purchase invoice. Bring these to the designated first maintenance facility for the vehicle's first maintenance. Note: Make an appointment with the 4S shop in advance. The first maintenance refers to the initial maintenance after the new car has been driven. The specific time varies by car, usually after driving 1,000 to 3,000 kilometers. The car needs to undergo the first maintenance promptly, neither in advance nor delayed. The completion of the first maintenance marks the end of the car's break-in period, allowing it to be driven according to the standard load and normal speed required by the car. The time for the first maintenance is calculated based on the date the car was picked up. There are two indicator values for the first maintenance time: mileage and time. Whichever comes first will be the standard. The first maintenance items include: changing the engine oil and oil filter, cleaning the air filter, checking various oil levels for normalcy, inspecting the generator belt and wiper blades for damage, checking tire pressure for normalcy, and inspecting tires for damage or bulges. Required time: Completing all tasks takes about 2 hours. The most important aspect of the first maintenance for a new car is changing the engine oil and oil filter. When changing the engine oil, the oil filter must also be replaced. The selection of engine oil must refer to the "Vehicle User Maintenance Manual," as different car models specify different engine oil grades. Maintenance precautions: Do not rinse the interior of the car body with water: Many people clean their cars during holidays, using water to wash the body and wiping it with a cloth. It is important to note that the interior of the car body should not be directly rinsed with water. If the floor mats are dirty, use a vacuum cleaner or take them out to brush and clean with detergent, dry them, and then put them back. There are many holes under the rubber mats on the floor of the driver's compartment. If water enters, it will not dry but flow through these holes to parts like the gearbox, causing erosion and corrosion. The best practice is to use a vacuum cleaner for cleaning 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 antifreeze brands differ, their chemical properties vary greatly. Various functional additives may corrode others. Different brands of antifreeze use different additives, 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, which 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 regular 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.