2019 BMW X7 Transmission and drivetrain Problems

“the transfer case for this 2019 is failing, and cannot be repaired without changing the entire case according to the mechanic notes. there is a significant grinding when turning at slow speeds and a locking-up feeling to the steering. dealer will not admit to any issues. car was inspected by an independent certified BMW mechanic no warning or indication given other than the impaired handling of the vehicle.”

“I am reporting a safety concern involving BMW vehicles equipped with the B58 Technical Update (B58TU) engine, commonly found in model years 2019–2021. These vehicles use a variable-displacement oil pump with an internal thermoplastic component that regulates oil pressure. This component is increasingly failing in the field, often fracturing and causing sudden loss or instability of oil pressure. Failures commonly occur during cold starts in low temperatures. …”

“The contact owns a 2019 BMW X7. The contact stated that while driving at an undisclosed speed, the engine overheated and the engine seized. The check engine warning light was illuminated. While attempting to restart the vehicle, the vehicle restarted with the power train warning light illuminated. The vehicle was taken to the dealer; however, the vehicle was not diagnosed, and the failure reoccurred. The failure was a persistent failure. The contact stated that there was thick white smoke coming from the exhaust. The contact noticed a fuel odor on the interior and exterior of the vehicle. …”

“Transfer case goes bad on all 2019 models. I'm in awe that there's not a recall on it. A replacement costs around $9k. Somebody should look into this. Thank you”

“Safety Defect Report — Engine Oil Pump Failure (BMW B58TU Engine) Component or System Involved The failure involves the variable-displacement engine oil pump installed in BMW vehicles equipped with the B58 Technical Update (B58TU) engine, commonly found in model years 2019–2021. The oil pump contains an internal thermoplastic adjusting component that regulates engine oil pressure. Field reports indicate this internal component can fracture, causing unstable or complete loss of engine oil pressure. The failed component may be available for inspection upon request if retained after repair. …”