2023 BMW i4 Complaint Log

I am reporting a recurring, catastrophic suspension defect in my 2023 BMW i4 eDrive40 that results in life-threatening rear tire failure. Despite adhering to all maintenance schedules, the vehicle's rear axle geometry fails to maintain stability, leading to extreme, accelerated inner-tread wear while the center and outer tread remains healthy. Timeline of Events: Initial Incident 5/4/2025 (21,493 miles): Suffered a sudden rear tire blowout while driving due to the inner tire wall wearing down to the metal cords. The dealer (BMW of Fort Lauderdale) performed an alignment and replaced the tires on my expense. Recurring Failure 3/6/2026 (35,200 miles): Less than 14,000 miles after the dealer-certified alignment, the new rear tires have reached a catastrophic state. The inner shoulders are completely bald (2.7mm inner vs 4.8mm outer), exposing the safety protector and creating an imminent risk of a second high-speed blowout. Manufacturer Response: The authorized dealer inspected the vehicle on 3/9/26 and stated the "alignment is within factory specifications," yet they refused to address why a vehicle "in spec" is destroying safety-critical components in under 14k miles. This indicates either a fundamental design flaw in the suspension components (e.g., bushings or control arms unable to support EV weight/torque) or defective factory alignment parameters provided by BMW for this specific model. Safety Hazard & Lack of Warning: This defect is a "silent killer." The failure occurs on the innermost edge of the tire, which is physically obscured by the vehicle’s body and cannot be seen during a standard walk-around. Because this EV has no regular service intervals (like oil changes), there is no professional opportunity to inspect the inner tires. A driver has no way to predict or diagnose this before a sudden, high-speed blowout occurs. BMW claims the car is "within spec," which indicates a fundamental design flaw that makes the vehicle un-roadworthy and dangerous

I was driving about 30 mph when I was prompted with the following error message, “Drive train fault, restart not possible, High Voltage Battery,” I was able to drive home which was about 1 mile away. I drove the car home, parked it and turned it off for 45 minutes then I attempted to turn it on but was unable to and continued to receive the same message. Side note, this vehicle was purchased from BMW Beverly Hills on 1/25/26 and not a month went by before I ran into this issue.

The sunroof spontaneously shattered while driving on the freeway. The sun shade was closed but had it been open, the glass would have entered the cabin and potential for harm. In addition, the loud bang was a distraction and had there been more heavy traffic there was potential for accident. There was no identified object that hit the sunroof. The car was taken to the dealership for repair and inspection.

While merging onto an interstate at speed, the vehicle experienced a sudden loss of motive power and came to a complete stop in an active traffic lane. Approximately six weeks earlier, abnormal drivetrain behavior (hesitation and torque interruption) was reported to the dealer. The dealer attributed the issue to tires and recommended tire replacement. No drivetrain diagnostics were performed. Immediately following the incident, a drivetrain malfunction warning occurred. BMW remotely restricted vehicle operation to allow limited driving back to my residence. The vehicle was later towed to the dealer. BMW subsequently confirmed catastrophic electric motor failure requiring full motor replacement. The incident created an immediate risk of collision with surrounding traffic and represents a serious safety defect involving unexpected deceleration and loss of propulsion.

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)

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 NHTSA 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)

The sunroof of my BMW i4 exploded and shattered while I was driving under light rain on 45-mph road. The explosion was very loud and scary. Luckily sunroof sliding shade was closed otherwise shattered glass will fall inside of car.

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.

While driving, the vehicle experiences intermittent braking failures, electrical glitches, and/or sudden loss of power. These issues match known problems reported on similar 2023 BMW i4 models. My VIN does not show an active recall, but I am experiencing dangerous symptoms. I am concerned for my safety and others. I respectfully request an investigation.”

Electrical system stalling stopping the car it won’t move breaking system

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.

MVA: [XXX] Sudden acceleration of vehicle. Brakes failed to work. Steering suddenly inoperative. Front passenger and I were injured. Vehicle damaged 3 other vehicles. One or more drivers whose vehicles were hit complained of injuries. For inspection, contact property damage adjuster with Safeco Insurance: Collision adjuster: LYNAE MCCALL, P: 509-944-8355 Email: [email protected]. Complainant unaware if vehicle malfunction issues have been inspected to date by the dealer or an independent service nor inspected by the manufacturer, police, insurance representatives or others. Complainant did not see or notice any warning lamps, messages or other symptoms of the problems prior to malfunction of the vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The vehicle randomly caught fire after sitting idle for approximately 8 hours. Going to a conference in Aria Las Vegas and drove over 260 Miles. There was no issues, no indicator warning lights or strange noises during the drive. Arrived at Aira approximately 4:00PM. Parked vehicle on the third floor of the Aira Self-Parking and did not touch the car after parking the car. I received a call at approximately 12:00AM that night from Aria Security. From Aria Security, stated that vehicle has caught fire. Fire was put out by Clark County Fire department, fire report received. A whiteness who called Aria Security, stated he heard loud popping, like small explosions, from driver side front tire before the fire started. Clark County Fire Department stated fire originated on driver side front of engine area. Battery not involved. Car is total loss. BMW NA performed a visual exam only. BMW NA stated that due to damage and connectors being present, could not find cause of fire and unwilling to perform a more detailed inspection. Cause of Fire and involved components are unknown at this time.

The contact owns a 2023 BMW i4. The contact stated that while driving at 20-30 MPH with a fully charged battery, the engine seized on two separate occasions. There was an abnormal grinding sound detected. The inoperable do not drive message was displayed after the failure. The vehicle was towed to the local dealer, where it was diagnosed with drive unit failure. The drive unit, rear axle, and battery were replaced, but the failure recurred. While his son was driving at approximately 30 MPH, the engine seized. There were no warning lights illuminated. The vehicle was towed two weeks later to the local dealer again, where it was diagnosed that the drive unit and drive axle needed to be replaced. The vehicle was not repaired. The manufacturer was contacted, who opened a case; the contact requested a buyback, but no additional assistance was provided. The failure mileage was approximately 16,000.

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.

Driving at night on [XXX] car in front of me swerved leaving a big deer in front of me on a car on my left, the BMW did not warn me, adjust speed, cinch restraints, or brake, There was no collision warning or advanced readiness at all! I hit the deer at 75 approx, went airborne and totaled my car. BMW wanted to see the vehicle and take data from it since even the cameras didn’t record, no safety features on this advanced vehicle functioned at 12,086 miles, this was an I4 M50 loaded, totaled the car INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Slowed to a stop with B mode engaged. Suddenly car lurched forward prompting me to slam on the brakes. No one was injured or vehicles damaged but it was unsettling. No warning or other issues prior to failure. No manufacture has looked at it and since it’s likely unable to reproduce often a test drive would likely not see it either.

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.

I believe the tire size is 245 R40 19. The tires interior seams on both rear tires are coming apart. Car has just passed 21K miles, and is driven very carefully. No pothole damage either.

This is the second time the brakes failed on this vehicle. The first incident, occurring as I pulled into my garage, in May 2023, was investigated by BMW North America and the vehicle was deemed to have no defect and to be safe to drive. The second incident occurred on [XXX]. The car was traveling approximately 15-25 mph on a collector road between [XXX] in downtown Los Angeles. The car immediately in front of me applied its brakes and when I applied my brake pedal the vehicle did not respond and my car did not slow down. I did not see any sort of warning lamp on the dashboard. I hit the car immediately in front of me and that car hit the car in front of it. My airbags deployed. The car called emergency services. No one was injured. My vehicle is now being examined by BMW North America. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving down a residential street with cars parked on both sides. My car stopped very suddenly because the passenger side front tire was pierced and flattened by something on the road. Almost simultaneously the car began to oscillate or jolt from side to side and hit a car parked on my driver’s side very hard and then oscillated back to a parallel position. This is a known problem on the i4 edrive community website. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On [XXX], while driving on a public highway, the vehicle shut off and came to a complete stop as I was going around a roundabout. I was in the inside lane, had just finished charging in Yuma, Az., and was just about to get back on the freeway heading back into California. Thankfully, there was no one behind me at that moment and I was able to restart the vehicle and continue driving. After arriving at my destination in Winterhaven, CA, I later saw that I had two missed calls from BMW Roadside Assistance. They called to check on my welfare as, unbeknownst to me, the vehicle sent out an alert as a result of the incident. 12/30/2023, I took the vehicle to BMW of San Diego (where I leased the car from) regarding the above mentioned incident as well as repeated Drivetrain Malfunction warnings. The vehicle had 43,770 miles on it. By 1/12/2024, the dealership informed me they could not replicate the problem, and what I found most alarming, was they could find no evidence that it ever happened. I asked if they could promise me it would not happen again, they could not. This caused me great fear for myself and for others. All they could offer was that I could file a claim with BMW of North America, which I did that same day. It was not until 3/19/2024 that BMW notified me they rejected my claim. On [XXX], as I was returning home from El Centro, CA, I received a warning message, "URGENT HIGH VOLTAGE SYSTEM CHECK UP" and directing me to the nearest service center. Again, I took the vehicle to BMW of SD, stopping to charge along the way, because the range was dropping rapidly. The mileage was 95,074, still under warranty. Again, they found nothing and made me take the car back. Ultimately, on [XXX], another alert "Range reduced: Limited charging possible. Have problem checked by the nearest service center." At BMW of El Cajon I was told that Cell Module #2 had failed and would need to be replaced, but now the car was out of warranty and my cost would be $23,366. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION A

This is an electric vehicle. The affected part is called a heat changeover value - this value controls the coolant that is used by the car to keep the drive battery cool. The valves have a problem with leaks and when they leak, the car should not be driven out of safety concern. The main battery could overheat causing a fire/explosion. My vehicle experienced this issue and was undrivable for approx. 30 days. There are several Facebook and Reddit groups reporting this problem from all over the world. While my vehicle was at the dealer for the repair, this dealer had another vehicle like mine with the same issue along with another BMW electric vehicle, different model, same issue. From what I understand the parts are being replaced but not with a redesigned part. This also seems to be impacting more than just 2023 vehicle model years.

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.

The contact owns a 2023 BMW I4. The contact stated while reversing, the drive train malfunction warning light illuminated. The contact proceeded with his commute however, the steering warning light illuminated, and the vehicle shifted into park independently. There were several messages displayed on the infotainment screen, and the contact was unable to shift the vehicle back into drive. The vehicle was towed to the dealer but was not yet diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 16,000.

Sudden acceleration when entering an open parking space, causing the car to hit two vehicles and causing extensive damage to my and the other vehicles. Safety of others would have been at risk as the accelerations was unintended and unexpected and if people were present they would have been in danger. The vehicle is currently at dealership for examination of unintended acceleration and accident. No warning of sudden acceleration nor any issue with car prior to accident. Air bags were not activated. Police contacted but since noninjury no report filed.

I am writing to file a formal complaint with the National Highway Traffic Safety Administration (NHTSA) regarding a serious safety issue with my recently purchased 2023 BMW i4. The incident involves a brake malfunction that occurred just two weeks after the purchase, posing a severe risk to my safety and potentially the safety of other road users. On 07/11/, while driving my newly acquired BMW i4, I experienced an alarming brake failure, which almost resulted in a collision with another vehicle. Fearing for my life and the lives of others, I immediately took the car to the authorized BMW service center in Fremont for immediate inspection and repair. Regrettably, it has now been over a week since I dropped off my car at the service center, and it remains unrepaired. The service center personnel informed me that they need to order a brake boost from Germany, but I am deeply troubled to learn that there is still no estimated time of arrival for this critical part. Consequently, I am left without a functional vehicle and potentially exposed to further brake-related hazards. This incident raises serious concerns about the safety and reliability of BMW's brake system in the 2023 i4 model. I find it unacceptable that a reputable automotive manufacturer like BMW does not have the necessary spare parts readily available for essential safety components like brakes. Furthermore, I am disappointed by the lack of transparency and communication from BMW throughout this ordeal. The uncertainty surrounding the repair process has caused significant distress and inconvenience, adding to the already harrowing experience. Given the gravity of the brake malfunction and the prolonged delays in repairs, I believe it is imperative for the NHTSA to investigate this matter thoroughly. The potential risks posed by a brake system failure are a matter of utmost concern and warrant immediate attention and action.

Vehicle is an EV (platform G26) and charger flap door was locked and would not open. Problem is similar to problem reported on NHTSA for BMW vehicles for "fuel filler door will not open", SIB 51 27 20. Safety issue is vehicle can not be charged and creates risk for driver and passengers being stranded. Older BMW vehicles had an emergency release but new models eliminated this feature. Vehicle was taken to dealership for repair and item know as cover pot defect was confirmed and replaced. Requested confirmation that replacement part addressed root cause but dealership would not offer any assurances.

This is a fully electric vehicle and upon arriving at a charger, the charging port door on the car would not open. It is a manual door - normally just push on the outside of the door and it pops opens. In this instance, pushing on the door did nothing, the door was stuck and would not open, putting my safety at risk as I could not charge the vehicle and had only limited range left to drive. No lights or warning messages appeared in the car. I contacted BMW roadside assistance who had me try multiple things, none of which worked. I was then advised there was no way to open the charging door without bringing it to the dealer. This left me, a single female on a road trip with my child 4 hours from home, stuck in a parking lot as darkness was approaching unable to charge my perfectly functioning vehicle. A quick google search revealed this is a known issue to BMW and many have been replaced under warranty, although no recall has been issued. We are expected to just drive with faulty charge door mechanisms until they fail, and just hope and pray you're in a safe place when it happens or have enough charge to get to a BMW dealer. The vehicle has not yet been repaired, waiting on a service appointment.

On 6/8/23 I tried to start my car and received the following error: "Drivetrain malfunction: Driving not possible. Call Roadside Assistance" and the car turned off. I tried 3 more times to start the car and received the same message. I could not drive my car, and had it immediately towed to the dealer. This is a brand new 2023 BMW i4 eDrive40 with only 1469 miles on it. Yes, the problem has been confirmed by the dealer, testing confirmed faults for the high voltage battery and a 30F current violation and sporadic software issue. As of 6/23/23, my car is still sitting at the dealer waiting for a fix (estimated for August). There is a recall for some 2023 i4 eDrive40s (campaign # 22V944000) regarding the high voltage battery electronic control unit (ECU) that may cause an interruption of electrical power, and risk of crash increases. I believe my vehicle should be included in this.

The car is brand new and does not connect to a level 3 charger. BMW service has no idea how to fix.

Drivetrain malfunction, made car inoperable. Went into park mode. No neutral ability to move. Had to be special tow. Car is 2 days old. Only 200 miles on odometer. Check internet, many many same issues.

I opened our garage door remotely, as I always do, and pulled into the driveway. As I entered the garage, I attempted to brake but the car continued to roll despite my pressure on the brake pedal. The car ran into the shelving and other items against the garage wall. I have entered our garage in this way many thousands of times, and I am confident I did nothing differently this time.

On 5/10/23 I was driving approximately 50 mph on a highway when my car slowed to 15 mph. I stepped on the accelerator and nothing happened. On the dash screen there was a warning which stated "drivetrain malfunction. Driving not possible. Call Roadside assistance". So I was stuck with a sudden deceleration on a busy highway and had to creep over 2 lanes to the shoulder and put the car in park. It would not restart. Myself and my child were in the vehicle. It is a miracle that we were not rear-ended. After calling roadside assistance, the car did turn back on and was driven to the dealer. The car spent 2.5 weeks at the dealer and they say a software update resolved the issue. This car was 4 weeks old when the incident occurred. It had approximately 300 miles on the vehicle.

Wireless CarPlay is not operating correctly and proving to be a hazard in driving. Often times, the GPS will randomly shift the “location of the car”, making it unsafe to drive because it is off by several miles, and a distraction because the screen moves with the location ping. I’ve reported this to apple and BMW several times over the last few months since January. Attached are just three of several instances in which this has happened (and I had a friend who was able to screenshot these).

A small spill of liquid (unsweetened iced tea) on the gear shift area inches from the cup holder shorted out the entire transmission of the vehicle, rendering it immovable. This happened while pulling into our garage, but if it had happened while the car was moving on the road it could have caused a catastrophic accident.

Our BMW i4 is equipped with wireless Apple CarPlay. CarPlay gets its geo-location (ie, GPS) data from the car. Since CarPlay is also an extension of your iPhone, the phone also is getting its GPS data from the car. In some situations, the car sends the wrong GPS data to CarPlay, and then all the mapping applications in CarPlay (and on your phone) have the wrong location. When this happens, the car is shown way off course, and the navigation app starts giving you rerouting instructions to get you back on course. Of course, these instruction are nonsensical and the locations are sometimes comical -- we live near a body of water, and the car is often shown driving through the water. This can only be corrected by rebooting the cars iDrive system or by disconnecting your phone completely from the car. This is a safety issue for two reasons. First the car gives you erroneous navigation instructions which can confuse you and potentially lead to an accident. But more importantly, the car is giving your phone the incorrect geo-location. This means that when you look at any map on your phone it shows you in the wrong the location. Modern iPhones have an SOS feature. If your car crashes, it will call 911 and relay your location. However, it will send the *wrong* location because it only knows what the car is telling it. This problem has been seen in several different BMW models; most often with cars that have iDrive 8. Based on BMW owner community forums, BMW dealers were made aware of the problem as long ago as June 2022. BMW USA has acknowledged the problem, and if pressed will say "we are working on a resolution" but refuse to give a timeframe for a fix. In the meantime, they say "don't use CarPlay maps". But of course that doesn't address the phone GPS / SOS issue.

The on-board GPS sends incorrect information to Apple CarPlay devices, including both location and dead reckoning. This means that any application on the phone--including SOS and 911 calls—sends inaccurate location information when this is occurring. It is intermittent but acknowledged by BMW as an issue. Since CarPlay specifications for wireless CarPlay note that all GNSS information comes from the car to the phone, this is 100% a BMW issue (although they point to Apple). There are reports this happens with Android Auto, as well. There are also reports of this impacting the location BMW thinks the car has, including the My BMW app, which may also impact BMW's emergency services (untested by me for obvious reasons).

When using navigation with CarPlay the position can become incorrect. This happens inconsistently but when it happens can happen suddenly. It is distracting as the navigation keeps re-routing and this often makes the map rotate in the big central display. It can also disorient the driver if they are driving in an area which is not familiar to them.

The contact owns a 2023 BMW I4. The contact stated while turning into a parking space, the vehicle experienced sudden unintended acceleration and crashed into a post and then into a wall. No warning lights were illuminated. The contact stated that there were no injuries sustained. A police report was not filed. The vehicle had not yet been taken to an independent mechanic or a local dealer to be diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 2,098.

On December 9, 2022, I tried to start my car in my garage. The car would not start..The dash read stop auto train failure contact roadside assistance. After calling my car salesman who told me I had to contact roadside assistance myself, I did so. Roadside assistance informed me they were unable to diagnose/correct the problem, and called a tow truck. The car was towed to dealership that day and has been on the lot ever since. After many consultations with the BMW people in Germany, the analysis was that the cell monitoring circuit module needed to be replaced and the replacement part is scheduled to arrive Mid-March, 2023.