What 39 owners told NHTSA about the 2019 BMW 3 Series Gt

Vehicle shudders under acceleration no warning lights or errors . Changed transfer case oil and same problem continues. No recall from manufacturer for issu

NHTSA ODI 11720158

I am reporting a premature failure of two critical engine components: the Heat Management Module (Coolant Pump/Thermostat assembly) and the Oil Filter Housing. Despite the vehicle's low mileage (40,000 miles), the Heat Management Module began leaking coolant, posing a significant risk of engine overheating and sudden loss of power while driving. Simultaneously, the Oil Filter Housing has developed a leak, allowing oil to seep onto the engine block and potentially onto the serpentine belt. Both failures represent a safety hazard: Coolant Leak: Risk of thermal engine damage and being stranded in traffic due to overheating. Oil Leak: Risk of oil contacting hot exhaust components (fire hazard) or causing the serpentine belt to slip/fail, resulting in a sudden loss of power steering and charging systems. These components appear to have failed due to manufacturing or material defects rather than standard wear and tear for a vehicle of this age and mileage

NHTSA ODI 11718383

The contact owns a 2019 BMW 330I. The contact recently purchased the vehicle. The contact received notification of NHTSA Campaign Number: 25V636000 (Electrical System); however, the part to do the recall repair was not yet available. The contact stated while driving 60 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The message "Drivetrain Malfunction" was displayed. The contact stated that on a separate occasion, when the vehicle was started, the vehicle vibrated and jerked abnormally with several unknown warning lights illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The failure became progressively worse, and the vehicle was no longer being driven. The manufacturer was not made aware of the failure. The approximate failure mileage was 54,000.

NHTSA ODI 11704226

While traveling at approximately 20 mph, the vehicle experienced a sudden loud pop from the engine bay, immediately followed by multiple dashboard warning lights. The vehicle was safely brought to a stop, and AAA was contacted to arrange towing to the nearest available repair facility. A diagnostic inspection identified the failure of the crankshaft vibration damper. According to the repair facility, this component is essential to maintaining the structural integrity and operational balance of the engine. At the time of failure, the vehicle had approximately 37,000 miles on the odometer—well below the expected service life of such a critical part. Had this failure occurred at highway speeds, the resulting mechanical disruption could have led to a loss of engine function and increased the risk of a serious accident or death. The nature and mileage of this failure raise concerns about a potential defect or design flaw. I am requesting that the National Highway Traffic Safety Administration review this incident and consider whether similar cases have been reported. Failures of this type should be reviewed for broader safety implications.

NHTSA ODI 11664246

WHEN I WAS DRIVING THE CAR ON HIGH WAY YESTERDAY AFTERNOON, ABOUT 6 PM (JAN 20, 2020) IN LEFT MOST LANE, THE CAR'S ALL LED DASHBOARD COMPLETELY SHUTDOWN (BLACK) AND ENGINE STOPED. I HAD TO SLOWLY MOVE THE CAR THE THE ROAD SIDE AND TRIED TO RESTART THE ENGINE. THE ENGINE STARTED WITH LOTS OF WARNING SIGNS.

NHTSA ODI 11300688