What Causes Excessive Engine Oil Temperature in BMW 5 Series?

[SilasLee]

If the engine oil temperature becomes too high, you can replace the engine oil cooler, as the excessive temperature may be caused by poor performance of the oil cooler. When the engine oil temperature is too high, it must be repaired immediately; otherwise, it will affect the normal operation of the engine. More information about engine oil is as follows: 1. Introduction: Engine oil is referred to as the lifeblood of the engine. Without engine oil, the engine cannot function properly. During engine operation, the oil forms a thin film on the surfaces of various engine components, preventing excessive friction and heat generation. 2. Replacement: Regularly change the engine oil during vehicle use. Each time the engine oil is replaced, the oil filter should also be replaced. The oil filter is responsible for filtering the engine oil. Without this component, the oil would become dirty over time, which could impair the engine's normal operation.