The contact owns a 2020 BMW X3. The contact stated that while driving 25 MPH, the message “Heat Management Module Malfunction” was displayed and the warning light was illuminated. The drive-train warning light was illuminated. Upon research, the contact became aware of NHTSA Campaign Number: 21V586000 (Fuel System, Diesel). The vehicle was previously taken to the dealer to be diagnosed, and the contact was informed that the high-pressure fuel pump needed to be replaced. The vehicle was repaired, but the failure reoccurred. The manufacturer was contacted, but no additional assistance was provided due to a prior good-faith repair being provided. The failure mileage was approximately 70,000.
NHTSA complaint #11754695 — an unverified report by a vehicle owner.
The contact owns a 2014 BMW X3. The contact stated that while driving 30 MPH, the vehicle stalled. The message “Fuel Supply Malfunction” was displayed. Additionally, the contact referenced NHTSA Campaign Number: 24V527000 (Air Bags) and stated that the passenger’s side air bag was not replaced. The local dealer was contacted and informed the contact that the vehicle needed to be diagnosed. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 80,000.
NHTSA complaint #11752985 — an unverified report by a vehicle owner.
I am writing to report a known safety-related defect on my 2021 BMW X3, VIN [XXX]. 1 The vehicle was diagnosed at BMW of Manhasset, an authorized BMW dealer, with a coolant leak originating from the heat management module and oil filter housing. This is not ordinary wear and tear. BMW's own service bulletin SIB 11 10 25 identifies this failure mode as a known issue affecting B46/B48/B58-equipped vehicles, which includes my X3. 3 4 5 The same defect is also the subject of an active U.S. class action, XXX. v. BMW of North America, LLC (D.N.J.), covering the same engine families. This defect presents a genuine safety risk, not merely a cost issue. The oil filter housing's internal wall structures, which separate the oil and coolant passages, are prone to failing or warping, and the gaskets sealing those passages are prone to premature failure. When this occurs, coolant can leak into the oil sump or drain externally, which can cause sudden engine overheating and/or engine failure, sometimes within minutes of the leak developing. If oil escapes and contacts the hot exhaust, it can also create a fire risk. A vehicle experiencing this failure is not safe to continue driving, and the risk of sudden, catastrophic engine damage or fire warrants a recall rather than leaving affected owners to discover and pay for this known defect on their own. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11752053 — an unverified report by a vehicle owner.
The contact owns a 2016 BMW X3. The contact stated that while driving 55 MPH and depressing the accelerator pedal, the vehicle stalled with the drive train warning light illuminated. A dealer was contacted. The vehicle was taken to a dealer where it was diagnosed and determined that the high-pressure and the pressure-regulating valves needed to be replaced. The high-pressure fuel pump was replaced three times. The contact stated that the failure had occurred on several occasions. The contact associated the failure with NHTSA Campaign Number: 21V586000 (FUEL SYSTEM, DIESEL); however, the VIN was not included in the recall. The manufacturer was notified of the failure. The failure mileage was 98,773.
NHTSA complaint #11747803 — an unverified report by a vehicle owner.
I am submitting this complaint regarding ongoing and potentially dangerous mechanical failures involving my vehicle that have repeatedly occurred despite numerous repair attempts by the dealership. Over the past year, I have taken my vehicle to the dealership more than 10 times for serious recurring issues. The problems have included: Drivetrain malfunction warnings Engine warning lights Oil leaks Smoke coming from the vehicle The vehicle unexpectedly shifting into neutral while driving Sudden loss of drivability requiring the vehicle to be towed The dealership has repeatedly stated that the issues were repaired, and at one point even provided a one-year warranty on the repair work. Despite this, the same problems have continued to occur. Most recently, the drivetrain malfunction warning and engine light returned again, smoke came from the vehicle, and the car shifted into neutral on its own, becoming completely undriveable and requiring towing. I have spent more than $10,000 on repairs related to these ongoing issues, yet the vehicle remains unreliable and unsafe. My primary concern is the safety risk posed by the drivetrain failure and the vehicle unexpectedly shifting into neutral while in operation. I am requesting that this matter be reviewed as a potential vehicle safety issue. I believe these repeated failures may present a serious risk not only to myself but potentially to other drivers as well. Thank you for your attention to this matter.
NHTSA complaint #11738436 — an unverified report by a vehicle owner.
I'm reporting a safety issue with BMW vehicles equipped with the B58 engine, primarily 2019-2021 models. These vehicles have an oil pump with an internal plastic component that regulates oil pressure, and this part is fracturing in the field, causing sudden loss of oil pressure. The failure typically occurs during cold starts in low temperatures. When it fails, oil pressure becomes erratic or is lost entirely, often with little to no warning before engine damage or vehicle disablement. Warning signs, when present, include inability to measure oil level electronically, abnormal oil pressure, or sudden drive train malfunction warnings. These can rapidly progress to engine shutdown or severe damage from oil starvation. This creates a dangerous situation because the vehicle can become disabled without warning while driving or after startup. This is especially hazardous when cars become immobilized in traffic or during winter conditions when failures occur most frequently, leaving occupants exposed to freezing temperatures while awaiting assistance. Pump replacement requires extensive disassembly and commonly costs $6,000-$8,000, assuming no engine damage. A critical concern: owners cannot determine if their vehicle has the original plastic pump or the later metal revision. BMW's VIN-based parts lookup now shows updated components even when original plastic parts remain installed, and BMW has removed the original plastic part number from dealer networks entirely. Failures are reported across multiple production years, and the scope of affected vehicles remains unclear. Because this condition causes sudden vehicle disablement without adequate warning, especially in cold weather, I believe this warrants investigation as a potential safety-related defect.
NHTSA complaint #11735215 — an unverified report by a vehicle owner.
It has come to my attention that liquid from the Positive Crankcase Ventilation (PCV) system may leak onto the water pump electrical connector. This condition can lead to an electrical short circuit and, in rare cases, may increase the risk of a vehicle fire. This issue presents a serious safety concern for vehicle owners and others on the road. A failure of this nature, especially one that carries a fire risk, warrants immediate review and corrective action. I respectfully request that NHTSA investigate this matter and determine whether a safety recall is necessary to address this defect. The dealership noticed the leak beginning at the weep hole of the waterpump. No incident occurred this is for preventive measures and review for recall and reimbursement
NHTSA complaint #11731565 — an unverified report by a vehicle owner.
Component Failed: Engine starter relay and starter motor assembly. The vehicle stalled in traffic and ignited upon a restart attempt. The vehicle is a total loss, currently held by [Insurance Co] at [Location/Lot #], and is available for inspection. Safety Risk: The driver’s life was at immediate risk. The vehicle stalled in active traffic, creating a collision hazard, followed by a rapid, uncontrollable engine fire. The driver suffered smoke inhalation and severe trauma while escaping. A delayed exit would have been fatal. Confirmed by Dealer: The failure mirrors the defect pattern in Recall 25V-636 (Starter Relay Corrosion). While the fire prevents reproduction, the vehicle had a consistent service history with no prior electrical issues. Inspected By: The vehicle was inspected by [Insurance Co] and declared a total loss. [Optional: The Fire Dept. responded under Report #[Number]]. BMW was formally notified via demand letter on [Date]. Warning Lamps/Symptoms: No prior warnings. The failure was acute. A "Drivetrain Malfunction" message appeared seconds before the stall. Smoke and flames appeared immediately upon the attempted restart.
NHTSA complaint #11724444 — an unverified report by a vehicle owner.
This technical failure in the BMW B58TU engine (2019–2021) involves the variable-displacement oil pump's internal thermoplastic slide. In low ambient temperatures, the high viscosity of cold oil creates mechanical stress that causes this plastic component to fracture. The Safety Hazard The primary risk is a sudden loss of motive power. When the slide fails, oil pressure becomes unregulated or drops entirely, triggering an immediate "Drivetrain Malfunction" or engine shutdown. Immobilization: Vehicles may stall in active traffic or high-speed environments without sufficient warning. Environmental Risk: Failures peak in extreme cold, leaving occupants stranded in freezing conditions while awaiting recovery. Detection Gap: The electronic oil level sensor often fails to complete a measurement ("Measurement Aborted") before a low-pressure warning appears, depriving drivers of a clear precursor to mechanical failure. Critical Technical Challenges Obfuscated Parts History: BMW has superseded the original plastic-vane pump with a revised metal-vane version. However, the Electronic Parts Catalog (ETK) now lists the metal version as the "original" part for affected VINs, making it impossible for owners to verify which version is physically installed without engine teardown. High Repair Barrier: Correcting this defect requires extensive disassembly, often costing $6,000–$8,000. If the failure occurs at speed, total engine replacement is frequently required.
NHTSA complaint #11721098 — an unverified report by a vehicle owner.
Oil pump failures have been reported across multiple production years, and affected vehicle population boundaries remain unclear. Because this condition can result in sudden vehicle disablement without adequate warning especially in the cold, I believe this issue warrants investigation as a potential safety-related defect. Loss of lubrication can cause the vehicle to become disabled without warning while driving or shortly after startup. This creates a safety hazard, particularly when vehicles become immobilized in active traffic or during winter conditions the cold is when they fail the most, where occupants may be exposed to freezing temperatures while awaiting assistance.
NHTSA complaint #11721009 — an unverified report by a vehicle owner.
I'm reporting a safety issue with BMW vehicles equipped with the B58TU engine, primarily 2019-2021 models. These vehicles have an oil pump with an internal plastic component that regulates oil pressure, and this part is fracturing in the field, causing sudden loss of oil pressure. The failure typically occurs during cold starts in low temperatures. When it fails, oil pressure becomes erratic or is lost entirely, often with little to no warning before engine damage or vehicle disablement. Warning signs, when present, include inability to measure oil level electronically, abnormal oil pressure, or sudden drivetrain malfunction warnings. These can rapidly progress to engine shutdown or severe damage from oil starvation. This creates a dangerous situation because the vehicle can become disabled without warning while driving or after startup. This is especially hazardous when cars become immobilized in traffic or during winter conditions when failures occur most frequently, leaving occupants exposed to freezing temperatures while awaiting assistance. Pump replacement requires extensive disassembly and commonly costs $6,000-$8,000, assuming no engine damage. A critical concern: owners cannot determine if their vehicle has the original plastic pump or the later metal revision. BMW's VIN-based parts lookup now shows updated components even when original plastic parts remain installed, and BMW has removed the original plastic part number from dealer networks entirely. Failures are reported across multiple production years, and the scope of affected vehicles remains unclear. Because this condition causes sudden vehicle disablement without adequate warning, especially in cold weather, I believe this warrants investigation as a potential safety-related defect.
NHTSA complaint #11720995 — an unverified report by a vehicle owner.
1. The primary failure occurred within the electrical system and engine compartment wiring. According to the official forensic report (Ref No: XXX by the Ministry of Internal Affairs of Georgia, the fire originated in the engine compartment due to an electrotechnical fault (short circuit). 2. The vehicle spontaneously exploded and caught fire while parked in a closed, underground parking facility of a commercial building. This created an immediate risk of: Mass casualties due to smoke inhalation and potential structural collapse of the parking ceiling. Fire spreading to dozens of adjacent vehicles.The explosion occurred without any prior warning, posing a lethal threat to anyone nearby. 3. The failure was officially confirmed and documented through a State Forensic Examination. The Ministry of Internal Affairs’ Forensic-Criminalistic Department conducted a comprehensive technical audit. They ruled out any external factors (arson/accelerants) and confirmed an internal electrical short circuit as the sole cause. 4. Yes. The vehicle was inspected and seized as evidence by the Criminal Police and the State Forensic-Criminalistic Department of Georgia. 5. There were no warning lights or messages displayed on the dashboard prior to parking the vehicle. The incident was a spontaneous combustion that occurred while the vehicle was stationary and unoccupied. please note that uploaded police documents are in Georgian language and I will be able to send over official translations upon request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11718288 — an unverified report by a vehicle owner.
On returning to my locked vehicle that had been in the parking ramp for 3 days, I started the car and the display message indicated that my vehicle was completely out of gas and the oil was very low. The vehicle had nearly a full tank of gas when it was parked. The vehicle was towed to the dealership who assessed the vehicle. The service department indicated that the vehicle likely did not sound like it was running because of the idle feature, and as such, I may have thought I shut off the car, but that eventually the idle feature turned off, and the vehicle ran while it was locked until it was out of gas. The service man who sent me a video of my vehicle and described what happened, also showed me another BMW SUV in the hoist next to my vehicle and indicated that same vehicle had the same thing happen as well. BMW replaced the programing/encoding control units software that was original to the vehicle. They indicated that this would improve overall function of the vehicle. The cost of this replacement was $371. This sounds like a design flaw. How can a locked vehicle start back up after a period of time, by itself with no vehicle fob in the vicinity, and run for hours until it is out of gas and the oil is low?
NHTSA complaint #11713799 — an unverified report by a vehicle owner.
BMW knows there is a problem with the 2013 x3 timing chain. I have continuously had my BMW serviced at there shops. Never once when my car was in for service did they mention the issue or proactively check. My vehicle now has the issue per the dealership snd indicated it is approximately a 20k repair which they included a new engine. I also followed BMWs recommendation to have the oil changed 1year or when miles were hit per their change program. Just has the oil changed in November and at the end of December now timing chain issues. Again multiple times this issue could have been identified and proactively fixed while under warrenty. Also has issues where the material on the glove box peeled off. BMW is also aware of this issue. Poor design and quality on these models/engine. Thank goodness i was not on the expressway when drivabilty issuev occurred!!!
NHTSA complaint #11708687 — an unverified report by a vehicle owner.
Our vehicle alerted us to over heating and to pull over immediately. Our car then stopped running. We had it towed and was told there was an issue with the water pump sensor and corrosion issues. They alerted us that there was a recall for these issues on our vehicle. We researched and found this to be true. When I contacted BMW they stated our vin number was not part of the recall but our vehicle match the exact models listed in the recall. We took it to the dealership and they repaired it for $2500 and the reason for the repair was the exact reason for the recall. Spoke with BMW again regarding this and they said if our vin was not on the recall list there was nothing they could do. I would think when your vehicle make and model matches the recall and the issues are the same you would be part of the recall no matter the vin number. I would like for this to be reviewed and see if we can get a reimbursement from bmw for the charges we paid out of pocket for an issue that should have been covered by the recall. The recall form attached is one my friend received who has the exact same car we have. The other documents are the service invoice and verification of our payment. Thank you!
NHTSA complaint #11706812 — an unverified report by a vehicle owner.
I am reporting repeated coolant system failures and overheating on my 2019 BMW X3 . I have had 4 coolant-related repairs in under 3 years, including the coolant reservoir boiling after service. Most recently, the problem recurred despite prior repairs. This is a Certified Pre-Owned vehicle with warranty history, and I believe this is a systemic engine/cooling defect that poses a risk of engine failure or fire. Other owners may be affected. A recall or investigation is warranted.
NHTSA complaint #11702650 — an unverified report by a vehicle owner.
The low-pressure fuel temperature/pressure sensor failed internally, causing diesel fuel to intrude via capillary action into the engine wiring harness and ultimately contaminate the Digital Diesel Electronics (DDE) control unit (ECU). The failed components (sensor, harness, DDE) are available for inspection upon request at BMW of Loveland, CO. My safety was put at risk in two primary ways: Engine Stalling Risk: The DDE is the engine control unit. As the fuel contaminated the electrical connections, the engine's reliability was compromised, creating a significant risk of sudden engine stalling while driving in traffic or at high speeds. Fire Hazard: The intrusion of diesel fuel—a combustible fluid—directly into the electrical wiring harness and the DDE created a clear fire hazard. Fuel near active electrical components poses a serious safety risk. Inaccurate Temperature Readings: The EGT (Exhaust Gas Temperature) sensor received incorrect readings due to the DDE/wiring issue, leading to potential engine damage due to excessively high exhaust temperatures. The problem has been confirmed by BMW of Loveland. The Service Director and their technical team identified the root cause in less than one day and confirmed it requires the replacement of the sensor, harness, and DDE. This was also validated by an internal BMW technical support case (TSARA). Gebhardt BMW failed to diagnose the issue correctly over three prior attempts starting in June 2023 through Aug 2025. Prior symptoms appeared over a period of months and included: Intermittent check engine light/MIL. Multiple, confusing diagnostic fault codes (related to air mass, charging pressure, and DPF efficiency). Increased frequency of DPF regeneration intervals.
NHTSA complaint #11700103 — an unverified report by a vehicle owner.
The contact owns a 2021 BMW X3. The contact stated that upon refueling the vehicle and attempting to start the vehicle, the vehicle failed to start on several occasions. The contact stated that the vehicle was able to restart after several attempts. The vehicle was taken to Auto Zone, where DTC: P0172 and P0446 were retrieved. The contact related the failure to BMW TSB Number: SIB 01 02 24. An independent mechanic advised the contact to only fill the fuel tank to half full. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in a recall. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was approximately 70,000.
NHTSA complaint #11697141 — an unverified report by a vehicle owner.
High pressure fuel pump Stalling almost caused an accident Yes the problem has been confirmed by BMW BMW has inspected the component Check engine light and drivetrain errors BMW replaced a high pressure fuel pump and fuel system in 2019, see attachment. I was not notifies of the 2021 BMW recall for the high pressure fuel pump. The high pressure fuel pump fail in 2025, see attachment at around 60,000 on the replaced high pressure fuel pump in 2019, less than the original fuel pump. BMW now says they are not going to repair this because of the age and mileage on the car. My position is the mileage on the car is irrelevant. It’s the mileage on the fuel system replaced in 2019. In addition, I was not notified of the recall in 2021and now the question is “ is the high pressure fuel pump replaced in 2019 the same fuel pump replacement part that came with the car when new? Obliviously the 2021 recall may have upgraded the fuel pump to satisfy the recall. If so, that should have been put into my car in 2021. BMW has been very deceiving on answering my questions.
NHTSA complaint #11696948 — an unverified report by a vehicle owner.