Ten parts of car maintenance in winter help to ensure safe winter. With the gradual decrease of temperature, winter has come. In cold winter, there are more bad weather such as rain, snow and fog, and the road surface is becoming more and more complicated. Drivers and friends should always pay attention to maintaining their vehicles. The following ten parts of maintenance knowledge will help you spend the winter safely. A song: If the wiper travels northward, in the northern area, if you go out in the morning and find that the wiper is stuck to the windshield by snow water, don't wash it directly with hot water, which will easily cause the window to burst and the wiper to deform due to temperature changes. The correct way should be to turn on the air conditioner with hot air, and the blowing mode is the front windshield until the wiper is turned on naturally. Part II: In winter, the cooling system should regularly check whether the water tank, water pump, belt, water pipe, make-up water tank and other components are working normally. If there is any damage or failure, it is best to repair or replace it in time. Otherwise, a bucket of antifreeze may be wasted on a small water pipe. In particular, some cars have high water temperature in summer, so the repair union will remove the thermostat. Although the problem can be solved in summer, it will be reversed in winter. Trilogy: Warm air in warm air for a summer often fails. It is best to try whether there is hot air, whether the fan is running abnormally and whether the air duct is unobstructed. Sometimes the problem is that the antifreeze in the warm air pipe does not flow for a long time, and the condensation blocks the circulation pipe. Although it does not affect driving, it is very troublesome to maintain. Tetralogy: antifreeze Many drivers in the south generally don't have the habit of checking antifreeze, but they should pay attention when driving to the north. Check whether the liquid is in short supply or deteriorated, and replenish or replace it in time if necessary. Antifreeze seems trivial, but it has a great influence on the car, from blocking the pipeline to corroding the cylinder block. Therefore, choose antifreeze carefully. First, don't mix. Second, don't use fake and shoddy products. In addition, generally speaking, antifreeze should be changed once every two years, and it is best to wash the cooling system with clean water before replacement. Part five: check whether the oil mark is low temperature, missing or deteriorated. In winter, the oil of cold car is too thick, which will affect the start-up and increase the wear of parts. At the same time, too thin oil will reduce lubrication and sealing performance. Choose high-quality compound oil suitable for winter. If it is at or near the specified oil change time, it is best to change it before the weather gets cold. Six series: the windshield is clear, which is the basic condition for safe driving. Scrub the wiper regularly in winter to ensure that the windshield can be scraped clean in rainy days. In addition, some windshield deicer can be added to the glass water. When the windshield freezes, spray glass water on it, and the ice will melt, unlike the usual glass water when it freezes. Seven-part: Before the car body enters winter, it is best to add a protective film to the car body. The paint coating or mirror glaze containing PTFE polymer can resist the erosion of acid rain fog. When driving to the north, the road surface is sprinkled with salt water after snow. The salt water splashed on the car body is very harmful to the car paint, so pay attention to cleaning. Eight-part essay series: Chassis In winter, the chassis of a car is always in direct contact with rain, and it is easy to rust. Flying tires will throw dirt on the chassis of the car. After the rain cleared, the car chassis began to rust. Therefore, it is best to take some time to do an anti-rust care for the chassis before winter. Nine parts: the battery is most afraid of low temperature, and the capacity of the battery at low temperature is much lower than that at normal temperature. Therefore, before the arrival of the cold season, the electrolyte of the battery should be replenished and the specific gravity of the electrolyte should be adjusted. At the same time, clean the terminals of the battery and apply special grease protection to ensure reliable starting and prolong the battery life. If the vehicle is parked in the open air or refrigerated environment for several weeks, the battery should be taken out and stored in a warmer room to prevent the battery from freezing and damaging. Trilogy: Tire rubber will become hard and brittle in winter, and the coefficient of friction will decrease, so the tire pressure should not be too high, but it should not be too low. When the outside temperature is low and the tire pressure is too low, the soft tire will accelerate the aging. In winter, it is necessary to clean up the inclusions in the tire tread frequently, try to avoid using tires that have been mended more than once, and replace tires with larger wear and different brands and patterns. There is a great difference between the internal and external wear of tires. In order to ensure safety and reduce wear and tear, tires should be replaced regularly. The evaluation of the questioner. thank you