BMW X3 coolant system failure with complete coolant loss at oil filter housing on BMW X3

Some BMW X3 owners report experiencing coolant loss at the oil filter housing, which can lead to serious engine damage if not addressed promptly. This coolant leak may be attributed to failed components such as the water pump, radiator, expansion tank, or damaged hoses. Identifying the source of the leak, particularly at the oil filter housing or thermostat housing, is crucial before any repairs can be made. Additionally, owners are advised to regularly monitor coolant levels and be vigilant for warning signs, such as frequently needing to add fluid, as these can indicate underlying issues with the cooling system. In some cases, the coolant loss may not be immediately visible, but warning lights or the consistent need for coolant can signal a problem. It is recommended that any suspected coolant leaks be inspected by a qualified mechanic to accurately diagnose the issue and prevent potential engine damage.