BMW X5 overheating issue with repeated water pump and coolant hose replacements, new computer installed on BMW X5

Some BMW X5 owners report experiencing persistent overheating issues even after replacing the water pump and thermostat. These problems may stem from a faulty water pump that disrupts coolant circulation due to leaks, damaged impellers, or bearing failure. Additionally, inconsistent or weak coolant flow can indicate blockages in the cooling system, further contributing to overheating. Owners have also noted that erratic fan operation, such as running at high speed for short intervals before shutting off, may signal underlying issues. Despite attempts to remove air from the cooling system, some still face overheating, highlighting the importance of ensuring no air is trapped. Furthermore, installing a new computer can affect the vehicle's performance and cooling system management. If these issues persist despite maintenance efforts, consulting a professional mechanic or BMW specialist is advisable for a thorough diagnosis of any underlying problems.