Reasons for BMW's Low Oil Temperature Not Rising Even After Prolonged Driving
1 Answers
Here are the reasons for BMW's low oil temperature not rising even after prolonged driving: Thermostat malfunction: Keeps the coolant in a large circulation state. Electric fan control issue: Continuously operates at high speed. Distorted signal from the water temperature sensor: Causes inaccurate operation of the thermostat and electric fan. DME not receiving the current signal feedback from the water pump: It assumes the water pump is not working. To protect the engine and prevent overheating, it puts the water pump into emergency mode and turns on the electric fan, resulting in consistently low oil temperature. Oil temperature range while driving: High-speed driving oil temperature is around 110°C, while low-speed or idling oil temperature is 95°C+.