2021 BMW M340I Complaints

View complaints related to 2021 BMW M340I. The complaints found here are submitted by actual consumers with first hand experience. There are more than 20 complaints submitted for the 2021 BMW M340I. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

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  • 2021 BMW M340I
    - Wellesley, MA

    The contact owns a 2021 BMW M340I. The contact stated while driving various speeds, the vehicle independently shifted from reverse(R) to drive(D) to park(P). The contact stated that while driving approximately 10 MPH and attempting to stop the vehicle, the brake pedal was depressed and went to the floorboard. The contact stated that the brake failed to operate as designed. The vehicle was towed to a dealer who diagnosed that the vacuum pump needed to be replaced. The vehicle was repaired. The contact stated that an unknown transmission repair was performed. The manufacturer was made aware of the failure. The approximate failure mileage was 4,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE