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At what temperature does the Roewe 550's fan start working?

4 Answers
ODaisy
09/01/25 2:57am
Normally, the fan of the Roewe 550 starts working at around 95°C. Here is some information about the car's cooling system: 1. The car's cooling system is divided into a major cycle and a minor cycle. When the engine is cold, the temperature is low. To quickly reach the working temperature of 90°C, the engine first operates in the minor cycle. When the temperature rises to the normal level, the thermostat opens. 2. The major cycle starts working, and the coolant begins to flow through the radiator. At this point, the temperature will drop by 1°C–2°C. When the temperature rises again to 90°C–94°C, the fan starts to rotate at low speed. 3. Heat dissipation begins. Soon, when the temperature rises further to 96°C–102°C, the fan switches to high-speed rotation for heat dissipation. The above process takes only 15–20 minutes at idle, and the time is even shorter during normal driving. Therefore, a trip of 30 to 50 kilometers is sufficient. In winter, if the vehicle is parked for 7–8 minutes, the engine temperature will drop by at most 10°C.
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EmersonLynn
09/13/25 5:52am
I've been driving the Roewe 550 for a while now, and the cooling fan usually kicks in when the water temperature reaches around 92 to 95 degrees Celsius. This temperature setting is designed to ensure timely cooling and prevent engine overheating damage. I remember once being stuck in traffic when the temperature gauge showed 95 degrees, and the fan started buzzing loudly, providing instant cooling effect. If the fan turns on late or fails to operate, allowing the water temperature to soar above 100 degrees, the engine could start smoking, leading to costly repairs. It's always best to keep an eye on the temperature gauge while driving to ensure it stays within the normal range. Regular maintenance checks on the fan and cooling system are also crucial to prevent unexpected breakdowns.
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StKylie
10/27/25 6:40am
As a veteran driver with over 30 years of experience, I've observed that the fan of the Roewe 550 typically activates between 90 to 95 degrees Celsius. Once it starts running, it effectively dissipates heat to protect the engine. If the temperature exceeds this range, say approaching 100 degrees, there might be an issue with the fan system, such as a faulty sensor or wiring problems. I recommend owners to check the operation of the coolant temperature gauge monthly; normal fan noise indicates good health. In case of high temperatures, stop to inspect the coolant level to prevent long-term damage to core engine components, as repairs can be quite troublesome.
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StThomas
12/10/25 6:54am
I always drive with great attention to safety. The fan of the Roewe 550 starts rotating at around 92 degrees, which is a reasonable activation point. Once the fan turns on, the water circulation speeds up to lower the temperature, preventing engine overheating. If the fan starts late, the high water temperature can be dangerous, especially during high-speed driving in summer. Regular maintenance of the radiator and sensors is crucial to detect and fix issues promptly. The temperature gauge normally fluctuates around 90 degrees, and the sound of the fan indicates everything is functioning safely.
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