2023 BMW I4 transmission problems

Filed Oct 31, 2026 · Electrical, Transmission · KY

I was driving and getting into the freeway and my car simply stopped automatically. I thought all I had a flat tire but the system locked. I resumed driving once I realized that the tires and wheels were fine. Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 19, 2026 · Fuel system, Transmission · CA

My vehicle intermittently loses drive power while being driven, suddenly and with no warning. Sometimes it drives normally, then fails repeatedly later. Before any warning appeared I had isolated instances of hesitation or power loss, but with nothing on the cluster I assumed I was misperceiving it. On August 25, 2026, the vehicle lost power four times while I was driving on the freeway and displayed a drivetrain malfunction warning for the first time. I took the car to an authorized dealer on August 28, 2026, at 60,676 miles. The dealer ran the manufacturer's diagnostic test plan, found multiple stored drive motor electronics faults, and identified rotor position sensor faults in both the front and rear drive motors. The manufacturer's own technical support was consulted and recommended the repairs. The estimate was about $17,353 to replace both sensors and service the 12V harness. It has worsened since. In early October 2026 it lost power six times within about 2.5 miles on one short trip. On October 15, 2026, it suddenly lost power on surface streets and I was nearly rear-ended. The abrupt speed reduction gave no warning to following traffic; a collision was avoided only because the other driver stopped in time. Because the failure cannot be anticipated, I cannot know whether it will occur while merging, at an intersection, or at freeway speed. I have substantially reduced my use of the car. The car was built in December 2022, within the range of a manufacturer bulletin on debris inside the electrical machine causing high voltage isolation faults, and within the federal safety agency Recall 25V395000, whose chronology states debris could have entered the electric drive motor during supplier production. Other owners of this model and year publicly report the same symptoms and diagnosis. The vehicle is unrepaired and available for inspection. The manufacturer has an open case but has not physically inspected it. No police or insurance inspection. No crash, fire, or injury.

Filed May 24, 2026 · Electrical, Fuel system · CA

While driving my 2023 BMW i4, the vehicle suddenly displayed multiple drivetrain and chassis malfunction warnings shortly after charging the vehicle at a ChargePoint station. The vehicle experienced a sudden loss of power/propulsion while driving, creating a serious safety concern. After stopping, the vehicle began rolling backward unexpectedly and several systems appeared to malfunction. The center display/screens became partially or fully unresponsive/blank and multiple warning messages appeared simultaneously. Due to the loss of propulsion and safety concerns, CHP assistance was required to safely move the vehicle off the roadway. The vehicle was later towed to BMW service for inspection and diagnosis. I am concerned this may involve a failure related to the electrical system, high-voltage battery system, propulsion system, drivetrain, or vehicle software. The sudden loss of power while operating the vehicle created a dangerous driving condition. The vehicle had approximately 76,000 miles at the time of the incident.

Filed Dec 24, 2025 · Transmission · SC

On [XXX] in Columbia SC, my vehicle reported a drivetrain failure at approximately 1800 and advised me to pullover immediately and contact roadside assistance. I promptly parked in the safest space I could approximately within 50 yards of receiving the alert. The vehicle would no longer move once parked to include neutral. BMW roadside assistance took 48 hours to pick up and transport the vehicle to my dealer in Florence SC. I was informed of a recall on the vehicle by the dealership and advised they would not be able to diagnose and repair until they obtained a part from another dealer that allowed them to put it into neutral. Very few updates were provided by the dealership. On 23 December I was informed the vehicle was repaired and ready. I was informed the problem was with the 12 volt battery. The battery was not replaced as it was deemed to be functioning properly after the computer system was updated. I picked up the vehicle on [XXX] with my daughter to drive it 2 miles to our home. 1.5 mile after leaving the dealership the warning came on again causing my daughter to not be able to move the vehicle out of the road at an intersection. The car could not be put into neutral to move it. BMW roadside assistance informed it would be 48 hours before the vehicle could be towed despite me telling them that it was in the flow of traffic. They advised me to locate a tow truck and I would be reimbursed. I contacted USAA roadside and they were able to have a tow truck to the vehicle 3 hours after the failure. I consider this failure to be very dangerous as the vehicle cannot be placed into neutral to move it out of the flow of traffic. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 18, 2025 · Fuel system, Transmission · WA

I am reporting a recurring safety issue with my 2023 BMW i4 (VIN: [XXX] ), currently at 28,426 miles. The vehicle has experienced three separate incidents of unexpected and complete loss of power while driving. The first incident occurred in March 2025. The vehicle suddenly lost all propulsion without warning and came to an immediate hard stop. I was later informed this was related to a wheel-positioning sensor. The second incident occurred in October 2025. I had been told that a recall software update would resolve the problem, but the vehicle experienced another loss of power while in motion, showing the issue was not corrected. The third and most concerning incident occurred in November 2025. Multiple error messages appeared instructing me to stop driving immediately, and the vehicle again lost power while moving. A complete loss of propulsion in traffic—especially while merging or pulling into a roadway—creates a severe safety hazard because I am unable to move the vehicle out of the way of oncoming traffic. This puts both myself and other drivers at risk. BMW has acknowledged awareness of issues related to these systems during previous service visits, but the defect continues to occur despite attempted repairs and software updates. I am requesting that the federal safety agency investigate this matter, as repeated power-loss events pose a significant safety risk that could lead to crashes, injuries, or fatalities. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 25, 2025 · Transmission · NC

We had a drivetrain malfunction losing all power to car as we were driving.The car lost all control and drove less than 20 feet before coming to a complete stop on the middle of the road. We were not notified about any recalls on the car and just saw there was one on your site. BMW has now had our car for 3 weeks and has had their engineers working on it saying they are testing teach individual power cell at this time. They have not provided us any feedback other than this and a timeline of when we will get our car back.

Filed Apr 23, 2025 · Brakes, Electrical · MD

The only way I could explain it was as if my brakes were failing. After joining the bmw i4 group on Facebook and having my kids record while driving. I was able to capture the issue. The vehicle drive train will malfunction causing the vehicle to move while not in motion when at a stop light. The vehicle will accelerate on its on. It has recently power off on me while driving and restart back up. I took it to the dealership they said it was fine. I took it today. They couldn’t offer me and my kid ride home or a loaner due to policy. I even asked to trade my car in. I was told that I was driving it wrong. I know my car keeps data on when these incidents occur. I have photos.

Filed Dec 31, 2024 · Transmission · 42,000 miles · KS

The contact owns a 2023 BMW I4. The contact stated that while driving into a parking space, the vehicle suddenly shut off with the message "Drive Train Malfunction" displayed. The vehicle was restarted but would not shift into gear and could no longer be driven. The vehicle was towed to the local dealer. The cause of the failure was not yet determined. The manufacturer was notified of the failure. The failure mileage was 42,000.

Filed May 21, 2024 · Electrical, Transmission · CA

As I was driving my car into the main avenue out of a parking lot, the car stalled and lost all power, the charge went from 57% to 0% and the power train failure warning came on the dashboard and a high voltage warning as well. The incoming traffic had to stop since I could not move the car, so I had to turn power off and power back and only then the car started to move slowly, the battery charge went up only to 37% and both warnings were displayed on the dashboard (high voltage warning and power train failure) with a message that said that it was OK to drive the car to a dealership to get the car checked.

Filed Nov 30, 2023 · Steering, Transmission · IL

My 2023 electric BMW i4 was driving normally on the evening of 11/29/2023. I was near the end of a 30 minute commute when a drivetrain error popped on the screen followed by an error that said "increased steering effort." Within seconds of those messages, without any physical signs of an issue, the car completely lost all power and steering and abruptly stopped in the middle of the street. As the car abruptly broke down, it went into park. It was so abrupt that there wasn't even time to pull over or coast to a safer area. I was stopped in the middle of the street. I couldn't restart the car nor could I shift the car into neutral. The car required a tow to the dealership. This is a SERIOUS safety issue. Had I been on a busier street or highway and suddenly lost all power and steering, I could have gravely injured myself and others. The vehicle has since been inspected by the local service center. They said there is a manufacturing defect with the copper brushes in the electric engine. They said the fix is to disassemble the motor to perform a labor-intensive cleaning. However, what is to prevent this issue from happening again? Especially since no parts are being replaced according to BMW. A car breaking down is one thing. A car abruptly stopping and losing all power and steering is an unacceptable failure. I am scared to drive this car ever again.