案例1奔驰E200车发动机温度过高故障现象一辆进口奔驰E200车,底盘号为WDD212048,搭配型号为271的涡轮增压发动机,行驶里程约为22万km。车辆在正常行驶过程中,因发动机温度过高,节温器爆开而拖车进厂检修。故障诊断接车时检查发现,车辆的冷却液已经基本漏完,散热器已经被厚厚的灰尘堵塞,因此怀疑是冷却系统散热不良,导致发动机温度过高。于是清洗散热器,更换节 Case 1 Mercedes E200 car engine temperature is too high Fault phenomenon An imported Benz E200 car chassis number WDD212048, with a model 271 turbocharged engine, mileage of about 220,000 km. Vehicles in the normal driving process, due to the engine temperature is too high, the thermostat burst open and trailer into the plant overhaul. Troubleshooting Check the car and found that the vehicle’s coolant has been basically missed, the radiator has been thick dust clogging, it is suspected cooling system cooling is poor, leading to high engine temperatures. So clean the radiator, replace the section