散热风扇不转的危害性，奔驰汽车风扇是发动机散热系统重要的机件，如果风扇出现不转的情况，那么散热系统的热量就得不到散发，发动机的热量就会持续升高，短时间内散热系统的循环液就会出现开锅的现象，一旦发动机过热严重，就会熔化活塞导致拉缸等故障，任其发展，更终会导致发动机化瓦，抱轴，捣缸，直发动机报废，所以碰到这种情况马虎不得。
The dangers of cooling fan does not turn, mercedes-benz fan is important part of engine cooling system, if the fan does not turn, so the cooling system will not get heat, heat of the engine will continue to rise, a short time, the cooling system of the circulating fluid will appear the phenomenon of water boiled, once the engine overheating, will melt cause failures, such as cylinder piston Let its development, will eventually lead to the engine tile, hold the shaft, ramming cylinder, until the engine scrapped, so encounter this situation shall not be careless.
奔驰汽车发动机水温高如果保险丝没烧的话，就是风扇插头处搭铁不好，或已烧蚀导致的；将电子扇故障排除后水温就会正常了。
Benz engine water temperature is high if the fuse is not burned, it is the fan plug is not good, or has been ablated; Once the fan is malfunctioned, the water temperature will be normal.
如果电动冷却风扇在发动机冷却液温度升高到规定温度后没有及时运转，会导致发动机冷却液温度过高，甚出现水箱开锅的现象；
If the electric cooling fan does not run in time after the engine coolant temperature rises to the specified temperature, the engine coolant temperature will be too high, and even the water tank will boil.
对于不同牌号的汽车或同一牌号不同年份生产的汽车，其电动冷却风扇的控制电路都不完全相同，因此在检修电动冷却风扇不转的故障时，应参照该车型维修手册中的内容和诊断程序；
For cars of different brands or cars produced in different years of the same brand, the control circuit of the electric cooling fan is not exactly the same, so when repairing the failure of the electric cooling fan, the contents and diagnostic procedures in the maintenance manual of this model should be referred to;
一般车型的电动冷却风扇控制电路的原理。安装在发动机水道或散热器上的冷却液温度开关和汽车空调开关，通过继电器共同控制冷却风扇电机，在发动机冷却液温度达到规定数值时或开启汽车冷气空调时，电动冷却风扇电机都会运转。
General model electric cooling fan control circuit principle. The coolant temperature switch installed on the engine channel or radiator and the automobile air conditioner switch jointly control the cooling fan motor through the relay. When the engine coolant temperature reaches the specified value or when the automobile air conditioner is turned on, the electric cooling fan motor will operate.
In addition, Benz vehicle fan operation, a slight jitter is normal. In actual use, there may be some sundries (catkins, soil, etc.) attached to the radiator fan, resulting in the shaking of the fan during operation. If the jitter is serious, please go to the repair place in time to repair, jinan Benz car repair which good? More questions, please http://www.lutongqixiu.com consultation!
