At what temperature does the BMW X1 fan start?

[DeAngela]

BMW X1's cooling fan starts to rotate when the water temperature reaches 98°C. The car's radiator fan is automatically activated and cannot be manually controlled. It does not start at low temperatures and operates at two speed levels for medium and high temperatures. Generally, the medium speed is automatically activated at 95°C, and the high speed is activated at 105°C. Radiator Fan Introduction: The radiator fan, or cooling fan, is controlled by a thermal-sensitive switch on the radiator. When the coolant inside the radiator reaches a certain temperature, the thermal-sensitive switch activates the radiator fan. When the coolant temperature rises further, the switch increases the fan speed. The fan automatically turns off once the coolant temperature drops to a certain level. Factors Determining Fan Operation: Whether the car's cooling fan starts rotating depends on the coolant temperature and has no relation to time. Only after the engine has been running for a certain period and the temperature rises does the coolant temperature in the radiator increase. When the coolant temperature reaches 95°C, the fan starts operating at approximately 1,600 RPM. At 105°C, the fan speed increases to about 2,400 RPM to enhance cooling efficiency.