NHTSA Complaint #11703212 — 2019 BMW X5

I am reporting a serious safety defect involving the oil pump assembly on my 2019 BMW X5 xDrive40i. While driving at low speed in normal conditions, a sudden dashboard warning appeared stating: “Engine oil pressure too low — stop carefully.” I immediately pulled over and shut off the engine. My vehicle had been serviced by an authorized BMW dealership less than one week earlier, and no faults or issues were identified. There were no warning signs or symptoms prior to the failure. An independent licensed repair facility inspected the vehicle after the incident and confirmed that the oil pump had failed due to a defective plastic internal component used in the pump’s design. The failed parts are available for inspection upon request. This failure created a significant safety risk, as sudden loss of oil pressure can cause engine seizure, loss of power steering, loss of braking assist, and an inability to safely control the vehicle. Had this occurred at highway speeds, the consequences could have been severe. I have since learned that this exact issue has been reported by other owners of 2019 BMW X5 vehicles and other BMW models using the B58 engine, which were equipped with an oil pump containing plastic internal drive components prone to cracking or separating. BMW appears to have updated the oil pump design to a metal version in 2020 and later models, suggesting the manufacturer was aware of the weakness of the earlier design. The defect was confirmed by an independent service center. The vehicle had also been inspected by BMW one week prior during scheduled service, yet no issues were detected. Because this failure presents a clear safety hazard and appears to be related to a widespread design flaw, I respectfully request that NHTSA open an investigation into the oil pump used in 2019 BMW X5 vehicles and consider issuing a safety recall.