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* The UEFA Champions League live streaming approle and replacement method of automobile engine cooling water With the increasing popularity of automobiles, people's demand for automobile expertise is also increasing. In the use of cars, engine cooling water is an indispensable part. This article will introduce the function and replacement method of car engine cooling water. 1. When the engine works for a long time, it will generate a large amount of heat energy. If the heat is not dissipated in time, it will cause the engine to overheat and even "explode", which will cause serious harm to vehicles and personnel. Therefore, engine heat dissipation is a very important research in the design and manufacturing of automobile engineering. The cooling water system is one of the main means of engine heat dissipation.The cooling water of the car engine can play the following roles: 1. Maintain the normal working temperature of the engine so that the engine is always in a normal working state. Two. Prevent the engine from overheating and avoid dangers such as "exploding". 3. Reduce the wear and corrosion of machine parts and extend the service life of the engine. Four. Optimize the gas emissions generated by combustion, reduce the emission of harmful gases, and protect the environment. Therefore, we should always pay attention to the quality of the cooling water of the automobile engine and the replacement time to ensure the normal operation and service life of the engine. Next, let's learn about the replacement method of cooling water. Two. First of all, we should know the replacement cycle of cooling water. The best way is to replace it according to the requirements of the car manufacturer, generally once a year or every 100,000 kilometers. However, due to different regions and driving conditions, the actual replacement cycle may deviate.If it is found that the coolant changes color, becomes cloudy, becomes sticky or decreases, it should be replaced in time. In addition, when buying a second-hand car, you should also pay attention to the history of the vehicle and whether the coolant replacement is carried out periodically. Secondly, we need to prepare the tools and materials for replacement. In terms of tools, mainly wrenches, funnels, collectors, etc.; in terms of materials, sufficient water and coolant need to be prepared. When replacing the coolant, it is necessary to empty the engine cooling water first, and then rinse the cooling system with clean water to remove impurities such as dirt and rust. This step is best done a few days in advance before replacement to avoid bringing the sludge into the new coolant. Then, we should choose the right coolant. Generally speaking, different car brands and models apply different coolants. You should choose a coolant that meets the requirements of the car manufacturer, and pay attention to its addition ratio.Generally speaking, the ratio of coolant to water is 1:1. If there is a special position, it needs to be added according to the instructions. Finally, when replacing the coolant, you need to pour the new coolant into the engine tank, and then repeat the process of adding. When the liquid surface is near the observation hole, start the engine preheating to check whether it is leaking. If no leakage and other problems are found, the replacement process has been completed. In a word, the role of car engine cooling water is very important. For car owners, they should always pay attention to the quality of the coolant and the replacement time to ensure the normal operation and service life of the engine. During the replacement process, we need to choose the appropriate coolant, prepare enough tools and materials, and clean before replacing. I hope this article can be helpful to you and protect your vehicle.

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