BYD Qin PLUS DM-i Cooling System Overheating Solution - Water Pump Thermostat Radiator Fan OEM Parts

This solution is specifically designed for the BYD Qin PLUS DM-i super hybrid system, providing a complete parts package to resolve "engine coolant temperature too high" warning conditions. When the vehicle displays overheating alarms, power limitation, or the cooling fan runs continuously at high speed, it typically indicates performance degradation or complete failure of core cooling system components—the electric water pump, electronic thermostat, radiator cooling fan, or main radiator.

The BYD Qin PLUS DM-i features the Xiaoyun 1.5L naturally aspirated engine operating in Atkinson cycle mode, with an ultra-high compression ratio of 15.5:1 and maximum thermal efficiency exceeding 43%. The DM-i hybrid system is equipped with two independent cooling circuits: a large circuit for engine and A/C cooling, and a smaller circuit dedicated to motor and electronic control cooling. High-temperature faults typically originate from component failure in the large circuit. As a professional automotive thermal management system manufacturer, we develop and produce strictly according to BYD OEM technical standards, with all parts passing rigorous pressure tests and high-low temperature cycle tests, OE numbers precisely matching the original vehicle for direct OEM replacement of faulty components.