How to inspect and maintain auto parts in winter

　　 1. Stop and start

　　 When parking at night, try to avoid parking the vehicle at the air outlet, and try not to drive or hit the accelerator immediately after the vehicle starts. Because vehicles are made of metal, especially the inside of engine cylinders, after overnight wind blowing and temperature reduction, the heat absorption and conductivity of metal will cause frost inside the engine, and the internal temperature will drop very low. It will bring great difficulties to the start of the engine, and the damage to the engine itself is also great. Therefore, try not to drive or hit the throttle immediately after starting in winter, because the oil must be delivered to various parts through the oil pump. If you drive and accelerate without good lubrication, it will definitely cause serious damage to the various parts of the vehicle.

　　 2. Wiper

　　 If you find that the windshield wiper is stuck on the windshield by snow when you go out early in the morning, do not wash it directly with hot water. This will easily cause the window to burst due to temperature changes and the wiper will deform. The correct method should be to turn on the air conditioner to hot air, the blowing mode is the front windshield, and wait for the wiper to turn on naturally.

　　 3. Cooling system

　　 In winter, check whether the water tank, water pump and belt, water pipe, water supply tank and other components are working properly. If there is any damage or malfunction, it is best to repair or replace in time. Otherwise, a bucket of antifreeze may be wasted for a small water pipe. Especially when the water temperature in some cars is too high in summer, the repairers remove the thermostat. Although it can solve the problem in summer, it will be reversed in winter.

　　 4. Warm wind

　　 The warm air that has been left for a summer often fails. It is best to test whether there is hot air, whether the fan is running abnormally, and whether the air duct is smooth. Sometimes the problem encountered is that the antifreeze in the heating pipe does not flow for a long time, and the condensation blocks the circulation pipeline. Although it does not affect the driving, the maintenance is very troublesome.

　　 5. Antifreeze

　　 Check if there is liquid shortage or deterioration, and if necessary, refill or replace in time. Antifreeze may seem a trivial matter, but it has a great impact on the car, from blocking the pipelines to corroding and damaging the cylinder. So choose antifreeze carefully, first, don't mix it, and second, don't use fake and inferior products. In addition, generally speaking, the antifreeze should be changed every two years. If the vehicle’s antifreeze has not been replaced for two years or the vehicle has been added with water, then the owner must go to the store for freezing point testing. If it fails to meet the standard, he should immediately replace. It is best to flush the cooling system with clean water before replacement.

　　 6. Engine oil

　　 After the heavy snowfall, the temperature dropped sharply. You must pay attention to whether the car's oil viscosity meets the standard. Because the viscosity of the oil will increase after the temperature drops sharply, it may be greatly affected during cold start. It is difficult to start and the engine is difficult to rotate. Therefore, it is recommended that the owner replace the oil with a lower viscosity. Generally, the oil can carry it to minus 25 It is about Celsius degrees, so when the temperature continues to drop, you need to change a higher level of oil.

　　 7. Windshield glass

　　 The clear windshield is the basic condition for safe driving. Wiper wipers should be cleaned regularly in winter, and the windshield can be cleaned in snowy weather. If possible, the anti-freezing windshield can be replaced to avoid freezing in winter. In addition, some windshield deicers can be added to the glass water. When the windshield freezes, spray the glass water and the ice can melt. Unlike ordinary glass water, the more it is sprayed when it freezes, the more troublesome it becomes. Glass water should be of higher quality. Because the amount of glass water used after snow is relatively large, it is recommended that car owners add some high-quality glass water to prevent freezing, because the water nozzle has a relatively small aperture and may become blocked. Once the glass water sprinkler is blocked, the car owner should not be nervous. You can check the freezing point in the store or put the car in a warm garage.

　　 8. Body

　　 Sprinkle salt water on the road after snow, and the salt water splashed on the car body is very harmful to the car paint. Before winter, it is best to add a protective film to the car body. Car paint coatings or mirror glazes containing Teflon polymer can resist acid rain, snow, and salt water. Take precautions beforehand, and you will not be afraid of damaging the paint when traveling in snow.

　　 9. Chassis

　　 In winter, the car chassis is always in direct contact with rain and snow, and it is easy to rust. Speeding tires throw the salty snow water onto the car chassis. After snowing and clearing, the car's chassis began to rust. Therefore, you'd better take some time to build a chassis armor before the winter.

　　 10. Battery

　　Batteries are most afraid of low temperatures. The capacity of batteries in a low temperature environment is much lower than that at room temperature. Therefore, before the cold season comes, the electrolyte of the battery should be supplemented and the specific gravity of the electrolyte should be adjusted. At the same time, clean the battery terminal and apply special grease to protect it to ensure reliable startup and prolong battery life. If the vehicle is parked in the open air or cold storage for several weeks, the battery should be removed and stored in a warmer room to prevent damage to the battery from freezing.

　　11. Tires

　　The tire rubber will become hard and relatively brittle in winter, and the friction coefficient will decrease. Therefore, the tire pressure should not be too high, but not too low. The external temperature is low, the tire pressure is too low, and the soft tires can accelerate the aging. In winter, you should often clean up the inclusions in the tire pattern, try to avoid using tires that have been repaired more than once, and replace tires with larger wear and different brands and different patterns. The internal and external wear of tires are quite different. To ensure safety and reduce wear, tires should be replaced regularly.

　　12. Car wash

The car body of heavy-duty auto parts will definitely be very dirty after heavy snowfall. It is recommended that car owners go to a professional car wash for cleaning, especially in the northern winter, where deicing agent will be sprayed to clear the snow. If the vehicle is not cleaned in time after snow, the chemicals in the deicing agent will affect the car body Cause corrosion. In addition, if you feel that the vehicle shakes irregularly when driving after snow, you should immediately go to the store for inspection to see if the vehicle has any suspension damage or excessive clearance.

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