NHTSA Complaint #11706120 — 2019 BMW X3

Reporting a failure of the engine cooling system on my 2019 BMW X3 that developed over time despite repeated repair attempts and ultimately resulted in complete engine failure. Over the past year, the vehicle has experienced ongoing coolant loss and overheating warnings despite multiple coolant-related repairs. When the problem continued, I brought the vehicle to a BMW dealership, where the service department determined that the engine had suffered internal damage consistent with overheating and advised that a full engine replacement was required. These issues occurred during normal driving and created unsafe conditions, including the risk of sudden loss of power or breakdown in traffic. Based on my experience and the repeated nature of the failures despite proper maintenance, it appears that coolant and overheating issues may be persistent in this vehicle model rather than isolated to a single component, and I am concerned that other owners may be experiencing similar safety-related defects. A investigation into this is warranted.