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What 7 owners told NHTSA about the 2022 BMW 8 Series Convertible

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (7)Electrical system (6)Engine (2)Transmission & drivetrain (1)Wheels (1)

1 of 7 complaints match · Wheels · clear filters

Oct 21, 2025Electrical systemWheelsEngine

Safety was compromised by drivetrain instability and a federal recall involving a starter motor defect that poses a fire risk. Despite this, BMW of Arlington has refused to authorize repairs or allow BMW of Austin to complete the necessary work—even after a $13,565 drivetrain failure diagnosis. On October 4, 2025, our 2022 BMW 840i became inoperable due to worn splines in the rear differential and drive shaft. BMW of Austin confirmed the failure was consistent with prior service-induced damage. The component is available for inspection. The issue followed a July 24 oil change at BMW of Arlington, after which the vehicle became undriveable. Staff verbally admitted damaging a plastic part but provided no technician report. A loaner vehicle was issued, implying acknowledgment of faultThe problem was confirmed by BMW of Austin. BMW of Arlington has not inspected the failed component and stated they “do not know what caused it.” No inspection has been performed by the manufacturer, police, or insurance representatives. Prior symptoms included persistent tire pressure issues, a visibly bent rim, and a failed emissions test dated October 28, 2022—before our purchase. The vehicle was titled at 21,248 miles but listed days later at 41,418 and 48,290 miles, triggering a NMVTIS “possible odometer rollback” alert. Following our escalation to BMW Group CEO [XXX] , our BMW app was restricted and warranty data—including federally protected emissions coverage—was removed. This suggests retaliatory suppression of coverage visibility. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11694669

Working with the data? Download all 7 complaints as CSV · fetched from NHTSA July 18, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2022 BMW 8 Series Convertible verdict →