What to Do When the Car Fan Keeps Running After the Engine Is Off and Key Is Removed?

[KaydenFitz]

The car's radiator fan continuing to run after the engine is turned off and the key is removed is a normal situation, as it helps cool down the car. Here are some relevant details about the car's radiator fan: 1. The fan is not controlled by the key: The radiator fan is directly connected to the battery, so as long as the battery has power and the engine temperature remains high, the fan will keep running until the temperature drops. This is because the temperature thresholds for the fan operation differ between the engine-off state and the driving state. 2. While driving, the fan starts working when the temperature exceeds 100 degrees Celsius and stops at 85 degrees: When the engine is off, the fan starts working at 105 degrees and stops at 85 degrees. Upon restarting the engine, the system switches back to driving mode, where the fan stops working below 100 degrees. Consequently, after turning off the engine again, the temperature will likely not reach 105 degrees, and the fan will naturally not operate.