At what temperature does the fan of the Roewe 550 start to operate?
3 Answers
Roewe 550 fan starts to operate when the water temperature reaches above 95 degrees Celsius. The function of the fan is to cool down the radiator and the engine to prevent boiling. Taking the 2014 manual Zhi Xuan version of Roewe 550 as an example, its body dimensions are: 4648mm in length, 1827mm in width, 1483mm in height, with a wheelbase of 2750mm. The 2014 manual Zhi Xuan version of Roewe 550 features a MacPherson independent front suspension and a multi-link independent rear suspension. It is equipped with a 1.8L naturally aspirated engine, delivering a maximum horsepower of 133PS, a maximum power of 98kW, and a maximum torque of 170Nm, paired with a 5-speed manual transmission.
I've been driving a Roewe 550 for several years. Normally, I observe that the fan starts around 95 degrees Celsius. Sometimes in traffic jams, when the water temperature rises to 97 degrees, it starts buzzing loudly, which helps the radiator dissipate heat and protect the engine. In summer, when the air conditioning is on, the fan might start earlier because the compressor increases the engine load. If the fan doesn't turn on, the water temperature could soar above 100 degrees, leading to overheating issues, and the dashboard warning light will illuminate. The most common faults are a broken temperature sensor or a blown fuse, which need to be checked promptly. For routine maintenance, I recommend inspecting the cooling system annually to ensure the coolant is sufficient and the ventilation is good, preventing minor issues from turning into major problems.
From car enthusiasts' experience, the Roewe 550's cooling fan is designed to activate between 90 to 100 degrees Celsius, for instance, the fan starts working when the coolant temperature reaches 92 degrees. Engine operating temperature control is crucial, with the ECU system monitoring temperature changes; when the air conditioning is on, the fan operates at a higher speed because the condenser requires additional cooling. Fan failures are usually caused by a faulty temperature control switch or relay issues. During maintenance, use simple tools to test the sensor—if the coolant temperature exceeds 105 degrees and the fan still doesn't operate, it's time for a repair. Avoiding overheating risks during high-speed driving is key.
