According to tianjin traffic police:
During the Spring Festival holiday, private cars or daily transportation or self-driving travel are used more frequently. After returning from vacation, the owner should conduct a targeted inspection and maintenance of the car to eliminate the potential traffic safety hazards of the vehicle and ensure the safety of driving.
Cleaning checks the appearance. After self-driving, the body of the vehicle will inevitably have stains, and if it is not cleaned for a long time, it will cause the paint to change color. It is recommended to clean the vehicle in time, carefully check whether there are scratches on the bumper, machine cover, door, etc., and some places that are usually not easy to observe, such as the top of the car, should not be missed.
Check the tires. The biggest wear and tear of long-distance driving is the tires. When inspecting tires, first make sure that the tire pressure is normal, but also pay attention to the degree of wear. There is a sign on the tire that must be replaced if the tyre pattern is below that scale. If it has not been worn to the mark position, but has cracked after a long period of use, it should be replaced in time for safety reasons. The small stones stuck in the tire pattern need to be removed in time to avoid deformation of the tire pattern and reduce the friction coefficient.
Check the engine fluid. After returning from a long drive, be sure to check the use of engine oil, insufficient should be added in time, and expired should be replaced in time. Engine maintenance and cleaning mainly include lubrication system, fuel system, cooling system and so on. In general, the vehicle needs to be cleaned and maintained every 5,000 to 10,000 kilometers. In addition, it is also necessary to clean and maintain the engine noise, weak acceleration, and high water temperature.
Inspect the interior of the engine compartment. If there is too much dust on the way, it will cause wear and tear on various components such as the air filter in the engine compartment; if the air filter is blocked, it will cause the engine to have poor air intake and power drop. Therefore, the air filter should be removed for a careful examination.
Check the brake system. The surface of the brake disc was originally smooth, and if there were obvious grooves, it may be that when the vehicle was driving on the gravel road, some fine sand and gravel were stuck between the brake disc and the fender, constantly rubbing the surface of the brake disc. Therefore, it is important to return from a long-distance drive to conduct a careful and thorough inspection of the brake system, and repair or replace the problem in time.
Check the chassis for "injury". First of all, observe whether the bottom of the car has been scratched, whether there is deformation due to the bottom, and even the pipeline leaks or breaks. After a violent bump, the vehicle steering system and suspension system may be loosened, at this time it is best to do a four-wheel positioning, while the screws on the chassis are tightened.
In addition to checking the above aspects, the vehicle's battery, wiper system, lighting system and driving computer should also be checked to ensure that the daily driving is normal. (Jiao Xuan, Liu Xiping)