There is a sense of frustration when the new Santana idles in winter.

In many cases, the automatic gearbox is not damaged by the internal valve body, but by stubborn dirt and impurities inside, especially in the valve body, which leads to blockage, failure to effectively adjust the oil pressure, and backward impact skidding. At the same time, the problem of high gearbox temperature can not be ignored. According to the data of automatic transmission maintenance association, "more than 90% of all faulty automatic transmissions are caused by overheating."

High temperature will destroy the quality and friction characteristics of automatic transmission oil, increase friction and wear, and the noise of transmission will follow. At the same time, sludge (impurities or dirt) will also be produced inside the transmission (such as the valve body), which will lead to the frustration and impact of the transmission. If the temperature exceeds 120℃, the rubber sealing material will start to harden, which will eventually lead to leakage and reduce the hydraulic pressure. If the temperature is higher, the gearbox will start to slip, which will increase the temperature. (Audi and other high-end models will call the police and enter the gearbox protection mode. If it is not solved in time, the gearbox will be scrapped.

Therefore, only by removing stubborn dirt and impurities in the gearbox and effectively controlling the working temperature of the gearbox can the gearbox problem be completely solved and prevented from happening again. This is also the key to achieve "no disassembly and no repair to solve the gearbox fault", and the specific content can be learned in detail by Baidu!