What are the reasons for the high engine temperature in the Hongguang S3?

[OThomas]

There are five main reasons for the high engine temperature in the Hongguang S3. Below are the causes of high engine temperature: Reasons for high engine temperature: Fan malfunction. A faulty fan can affect its normal operation. Specific causes include delayed or premature activation of the fan electromagnetic clutch or fan motor control switch; the fan not turning at all; or failure of the fan silicone oil clutch. Insufficient coolant. Low coolant levels due to excessive internal consumption, primarily caused by cylinder head damage. Poor coolant circulation. Specific causes include water pump failure; thermostat damage; excessive scale buildup in the radiator or engine water passages, not cleaned in time. Poor engine performance. Main causes include delayed ignition timing, overly lean fuel mixture, excessive carbon buildup in the combustion chamber, and engine knocking. Insufficient oil. This prevents moving parts from receiving adequate lubrication, increasing friction resistance, accelerating wear, and generating more heat. It also raises the oil temperature, reducing its viscosity, which worsens friction, heat generation, and heat dissipation, leading to engine overheating. Radiator cooling issues. Main causes include blockage by debris between cooling fins; deformed radiator fins; internal radiator blockage; or the louver not opening fully. Solutions: Find a safe place to pull over and let the vehicle idle without turning off the engine, as shutting it down would stop the cooling fan and coolant circulation, making the engine even hotter. Open the hood to increase airflow and wait for the water temperature to drop before slightly loosening the radiator cap. Open it fully only after internal steam has been released. Check the radiator hoses for leaks and ensure the coolant level is sufficient. If no coolant is available, mineral water can be used temporarily, but it must be replaced with proper coolant later. For engine overheating, the average person can usually only check and add coolant. For other issues like water pump or thermostat failure, professional assistance is required.

[OLila]

I've been driving the Hongguang S3 for several years and have encountered the issue of high water temperature quite a few times. I remember one summer when I was stuck in traffic, the temperature gauge suddenly shot up to the red line, which really scared me. After pulling over, I found the coolant level was extremely low, probably due to leakage or evaporation. Refilling it temporarily helped, but later it turned out the water pump was broken, blocking water flow and causing heat exchange failure. Another time, the fan wouldn't spin because of a relay failure. Long uphill drives or towing heavy loads also easily cause the engine to overheat, especially since small-displacement cars have limited power. From my experience, if the water temperature is abnormal, don't push it—stop and check the coolant level and fan to avoid engine seizure. Monthly self-checks of the cooling system can prevent small issues from becoming big problems. High temperatures damage the engine, so timely repairs are crucial for safety.