2019 BMW X3 Complaints

ENGINE — Filed 09/20/2026

Oil pump failure after 48,000 miles

ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM — Filed 09/16/2026

On Sept 16th, 2026 my wife was operating the vehicle under normal, routine driving conditions. While she was completely stopped at a stop sign the vehicle spontaneously caught fire. Description of the Issue and Damage: 1. There was no collision, impact, or external trauma prior to the fire. 2. There were no check engine lights, overheating warnings, or malfunction indicators on the dashboard leading up to this event. 3. The vehicle has been properly maintained and unmodified. 4. The fire originated spontaneously within the engine compartment. As documented in the attached photographs, the thermal event was heavily concentrated on the passenger side of the engine bay. 5. The fire escalated rapidly, resulting in the total destruction of the engine bay, the melting of the passenger-side front fascia and alloy wheel, the destruction of the structural fender, and severe thermal damage to the hood and lower windshield area. 6. My wife was thankfully able to immediately evacuate the vehicle before the cabin was engulfed, escaping physical injury, but she was placed in extreme danger due to this sudden defect. 7. The local Fire Department responded to the scene and extinguished the fire.

UNKNOWN OR OTHER,ENGINE,FORWARD COLLISION AVOIDANCE — Filed 06/18/2026

UNKNOWN cause. while driving approximately 45–55 mph, the vehicle experienced a sudden and unexpected braking event and engine shut down. •The vehicle automatically came to an abrupt, complete stop. •The engine shut off and then immediately restarted automatically. •A “Service Rear Pads” warning appeared after the vehicle auto-restarted. The vehicle did not gradually slow down; it suddenly and forcefully braked to a complete stop and shut down completely. This was a serious and potentially dangerous safety event as an unexpected stop/shut down event at 45–55 mph could have created a significant risk of collision. We contacted the BMW service center and scheduled a diagnostic appointment for June 22. During the June service visit, the dealership performed: diagnostics, rear brakes and rotors replacement, A/C recharge, tire rotation and balance, and oil change/service. Following the June service, we began experiencing new and intermittent symptoms that had not been present before, including: Ticking, metal clanking, new road/tire noise, Changes in vehicle dynamics and overall driving feel, other intermittent noises. On July 21, we contacted BMW to report the new intermittent noises and changes following the June service and requested an appointment to have these concerns evaluated. An appointment was scheduled for July 24. The July MPI identified several concerns that differed substantially from the June MPI, including: Rear differential leak, worn motor mounts, low battery concerns, & uneven tire wear and cracking. We also observed a permanent brake-pad imprint on a new rotor. These discrepancies raised additional questions and we were told by the SM that the technician had “missed” them in June, even though he documented as good. We refused to accept the X3 back for now d/t safety concerns, and we notified BMW of North America for investigation. The cause for the critical shut down event remains unknown. How can Flow BMW assure it's safe to drive?

ENGINE AND ENGINE COOLING — Filed 03/01/2026

The contact owns a 2019 BMW X3. While the vehicle was at an independent mechanic for maintenance, the technician discovered an active coolant leak coming from the coolant expansion tank. The mechanic stated that the leak was caused by excessive system pressure stressing the factory plastic tank. The mechanic informed the contact that if the issue was not resolved, the failure might become a major coolant leak into the engine, and the engine would need to be replaced. The vehicle was not repaired because the leak was coming from several areas. The contact stated that all the plastic parts need to be replaced with metallic parts. The vehicle was towed to the dealer but was not yet diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 69,000.

SUSPENSION — Filed 08/06/2026

I was driving in my bmw x3 going about 35 miles an hour and hit a small pothole next thing I know is I got a flat tire when I pulled over the perch plate on the strut had slipped down and hit the tire causing it to blow out and now I'm stuck having to replace the entire strut assembly

UNKNOWN OR OTHER — Filed 07/25/2026

**Description of Incident** On **July 25, 2026**, I parked my 2019 BMW X3 xDrive30i in a parking lot and turned the engine off. The vehicle was shifted into Park, locked, and I walked into a nearby store. At approximately 6:41 p.m., I received the update on my phone confirming that my vehicle had been locked. I remained inside the store for approximately six minutes. My purchase transaction was completed at approximately 6:47 p.m., at which time I immediately exited the store. When I returned to the parking lot, I found my vehicle fully engulfed in flames, not merely smoking. The fire had developed rapidly during the brief period the vehicle was parked and unattended. Prior to parking the vehicle, it had been operating normally. There were no warning lights illuminated on the instrument panel, including no check engine light, no engine overheating warning, no temperature warnings, and no other indications of a mechanical or electrical problem. The vehicle was not overdue for scheduled maintenance, and I had no reason to believe there was any issue that would place the vehicle at risk of catching fire. The vehicle was completely destroyed by the fire, which also spread to nearby parked vehicles. Based on the absence of any warning signs and the fact that the fire occurred while the vehicle was parked with the engine turned off for only a few minutes, I am requesting that this incident be investigated to determine whether it may have resulted from a vehicle defect.

UNKNOWN OR OTHER,ENGINE — Filed 03/05/2026

I bought my 2019 BMW X3 late 2025 before Christmas. The Carfax was fine and there were no open recalls on the vehicle. The vehicle had been serviced regularly at BMW facilities. Our family mechanic looked at the vehicle before I bought it and performed some basic diagnostics. The vehicle appeared fine. There were no error codes and all of the fluids were topped off. I don't know if the issues with the coolant were there before I purchased the vehicle or if they happened afterwards. There were no warning lights and everything looked good. This car is garage kept and is used a couple of times a week. I did my research on the internet and took my car in for an oil change at a highly-rated independent auto repair facility that specializes in European vehicles and are famous for providing dealership-level expertise, ASE-certified with factory trained technicians from Germany. On March 5th, 2026, when I went to pick up my car, they told me the bad news that is a well known manufacturer defect within the industry regarding these vehicles. They used plastic components in the engine compartment and in the cooling system, which makes the vehicles malfunction. From their report, with pictures, they state the following repairs need to be made, "During the vehicle inspection noticed active coolant leaks are present from multiple locations. The radiator plastic tank actively leaking coolant. The water pump change over valve leaking coolant. The turbocharger coolant line has a coolant crud build up . Oil filter housing and coolant flange on the cylinder block are discolored. For proper cooling system repair recommend complete update of the cooling system. Both balance shaft end caps leaking oil. Recommend replacement during cooling system update." They quoted me $8,914.86 for this repair. That's over HALF the value of the vehicle. They said the entire system needs to be replaced because ALL of the plastic parts in Florida's hot sun will fail. Sudden coolant failures in FL = DEATH.

UNKNOWN OR OTHER,ENGINE — Filed 01/21/2024

I am submitting this complaint regarding a serious mechanical and safety issue involving my 2019 BMW X3. On or around January 21, 2024, while driving from my home, a warning signal suddenly appeared on my dashboard related to the vehicle’s cooling system/engine. Due to safety concerns, I pulled into a nearby Wawa parking lot, which was the safest available place to stop at the time. I turned the vehicle off and waited approximately 15 minutes before carefully driving the vehicle back home. After inspection and diagnosis, I was informed that the vehicle required extensive repairs, including an engine replacement and cooling system repairs. At the time the coolant warning appeared, the replacement engine reportedly had approximately 59 miles on it. I believe a sudden engine or cooling system malfunction while operating a vehicle presents a serious safety concern for drivers, passengers, and others on the roadway. In addition, I experienced issues involving the shark fin antenna on the vehicle, which I understand may be connected to broader complaints involving BMW vehicles. I am requesting that NHTSA review this matter to determine whether these issues may indicate a broader defect or safety-related concern affecting other consumers. I am willing to provide supporting documentation including repair invoices, dealership records, photographs, and any additional information requested. Thank you for your attention to this matter and for your commitment to vehicle safety.

STRUCTURE — Filed 05/25/2026

While driving our BMW 2019 X3 on the highway, other drivers honked to get my attention that our vehicle's rear hatch was partially open. When we came to a stop light, I had my son riding in the passenger seat press the hatch button on the key fob to close the hatch. Instead this fully opened the back hatch. We continued pressing the fob button in an attempt to get the hatch to close without having to exit the vehicle. Rather than exit the vechicle in the middle of the roadway, we drove about 50 yards until we could pull over safely. A motorcyclist had been following us, and came up behind and communicated that he wanted to press the button to close the hatch. After I gave my consent, he pressed the close button and the hatch closed and latched. My husband has previously had incidents where after parking the BMW, he finds the back hatch open. He's also researched online this is apparently an issue. Reference: [XXX] NHTSA claim XXX INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

UNKNOWN OR OTHER — Filed 01/02/2026

My SOS system has failed due to tsp/atm module defect from faulty shark fin component. My vehicle is off line and im unable to receive emergency services in case of an emergent situation.

SERVICE BRAKES — Filed 03/04/2026

Rear caliper locking up when in reverse. Knocking noise and crunching sound.

POWER TRAIN,UNKNOWN OR OTHER,ENGINE — Filed 05/15/2026

My 2019 BMW X3 equipped with a B46 engine developed a significant coolant leak at approximately 80,000 miles. The vehicle displayed a low coolant warning, and coolant was visibly leaking underneath the vehicle. Around the same time, I began noticing excessive white exhaust/steam during cold starts and, for the first time since owning the vehicle, had to add engine oil between scheduled oil changes. The vehicle is currently undergoing inspection by an independent repair facility. Preliminary findings indicate concerns involving premature failure of critical plastic cooling system and/or oil filter housing components. Based on my research, these failures appear consistent with widespread complaints involving BMW B46/B48 engine cooling system and oil filter housing defects. I am concerned this defect could lead to sudden coolant loss, overheating, engine failure, or unsafe driving conditions. Prior to the coolant warning appearing, there were no significant alerts indicating a major or imminent cooling system failure. The apparent failure of critical plastic engine cooling components under normal driving conditions raises serious concerns regarding the durability and safety of these parts. I have photographs documenting the coolant leak, as well as detailed notes and diagnostic information from the repair facility, available upon request. The vehicle is available for inspection.

ELECTRICAL SYSTEM,UNKNOWN OR OTHER — Filed 02/20/2026

Our 2019 BMW X3 M40i shows "EMERGENCY CALL SYSTEM MALFUNCTION" which means the "SOS" system, which is crucial for post-collision response, fails. Erhardt BMW in Bloomfield Hills, Michigan confirmed water leakage due to defective sealing around the roof-mounted shark fin antenna damaged the Telematics Control Box (TCB) and now requires replacement. The estimated cost is $3,600. Some quick research revealed this to be a repeated problem with my vehicle. BMW has acknowledged it as a defect in 2017-2023 model year BMW M440i, M550i, X1, X3, X4, X5, X6, X7, 330, 340i and 750i vehicles and fix it at no cost, but only for citizens of [XXX] , as reported by [XXX] of [XXX] . For details, see: [XXX] . This seems unfair to non [XXX] residents like me [XXX] ). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE,FUEL/PROPULSION SYSTEM — Filed 05/01/2026

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.

ELECTRICAL SYSTEM — Filed 09/15/2025

Main dashboard display is partially blocked by a message stating “emergency call system malfunction.” Apparently the roof mounted antenna’s seal fails and allows water into the electronics for the emergency call system. Upon failure, it also stops the Bluetooth microphone for the cell phone to stop working. The dealer quoted the repair at $3,200. Judging from a google search, this is a common problem among this generation of BMW vehicles.

ELECTRICAL SYSTEM — Filed 03/20/2026

The vehicle's Telematics Control Box (TCB), located beneath the roof-mounted shark fin antenna, failed due to water intrusion and internal corrosion. The failure produced the following fault codes confirmed by BMW of Norwood, MA: B7F341 (backup battery hardware defective), B7F33C (internal ECU error), and B7F327 (microphone short circuit to ground), along with cascading faults across multiple other vehicle modules. Symptoms included a persistent 'Emergency Call System Malfunction' warning on the instrument cluster, loss of GPS/navigation accuracy, and loss of odometer display. The shark fin antenna base seal — a foam tape and adhesive system — had likely deteriorated after approximately 6-7 years of service, consistent with a pattern of failures reported by numerous other owners of 2017-2023 BMW X1, X3, X4, X5, X6, X7, M440i, M550i, 330, 340i, and 750i vehicles. BMW dealer quoted $3,300 for repair. An independent BMW specialist quoted $3,500. BMW North America declined to cover the repair as the vehicle is out of warranty, despite acknowledging the issue as known. This failure mode is the subject of active class action litigation (Craft v. BMW of North America LLC, Case No. 1:24-cv-06826, U.S. District Court for the District of New Jersey) and an ongoing investigation by Sauder Schelkopf LLC on behalf of affected owners. SAFETY CONCERN: The failure disables the Intelligent Emergency Call system, which automatically contacts emergency services in the event of a serious accident. Additionally, the persistent warning obscures the instrument cluster including the odometer display, impairing normal vehicle operation. Water intrusion reaching vehicle electronics represents a broader safety risk if it propagates to safety-critical modules. ACTION REQUESTED: Formal investigation into the adequacy of the shark fin antenna sealing design across affected model years, and consideration of a recall or extended warranty to cover TCB replacement costs for affected owners.

ELECTRICAL SYSTEM,UNKNOWN OR OTHER — Filed 03/20/2026

I am reporting a water intrusion issue in my 2019 BMW X3 involving both the roof-mounted “shark fin” antenna and the sunroof. Water enters the vehicle during normal rain conditions and has caused failure of the emergency call (SOS) system. This presents a serious safety concern, as the emergency communication system may not function in the event of a crash or emergency. Water intrusion also creates a risk of electrical damage and potential malfunction of critical vehicle systems while driving. The vehicle has been properly maintained, and this issue appears to be related to known defects involving water leaks from roof components in BMW vehicles. The total repair cost to address these issues is $4,650.

UNKNOWN OR OTHER — Filed 03/04/2026

While driving down the highway at about 60 mph, the vehicle made a loud noise like a gunshot, and the sunroof exploded. Fragments of glass fell from the sunroof onto the backseat and floor board and large chunks of glass fell after. There was not any indication that the sunroof was damaged prior to failure and there were no other cars around that could have caused a rock or other debris to fly up and hit the sunroof. Fragments of glass could have injured the driver and the noise startled the driver and could have caused a wreck.

SERVICE BRAKES,FORWARD COLLISION AVOIDANCE — Filed 06/20/2025

At some point in June 2025, between approximately 11 a.m. and 2 p.m., I was driving southbound on the 110 Freeway in Los Angeles, just south of the 134 interchange, at approximately 45 mph. Traffic was light, with no vehicles in front of me and no vehicles attempting to merge into my lane. Without warning, a bright red alert appeared on the dashboard of my 2019 BMW x3 and the vehicle suddenly applied full braking. The position of my arms at that moment caused an injury to my right elbow, which has remained painful since the incident. In January 2026, under nearly identical circumstances, the emergency warning appeared again. This time, the brakes did not engage. In July, I contacted BMW Corporate and service center regarding these incidents. I found their response dismissive, stating that “sometimes that happens.” A service center later informed me that this is a known issue referred to as “phantom braking.” Having experienced this firsthand, I believe this represents a serious safety concern. In addition to my injury, I could easily have been rear-ended at freeway speed. Despite acknowledging the issue, BMW Corporate requested that I sign an indemnity waiver in exchange for covering only the inspection cost. This response feels inappropriate, as their initial focus appeared to be limiting liability rather than addressing a known safety defect. Given that this is reportedly a known issue, I believe an inquiry is warranted into how often this has occurred and whether others have been injured.

STEERING,VEHICLE SPEED CONTROL,ENGINE — Filed 05/01/2025

Subject: Rear Differential Mount Failure and Driveshaft Breakage — Sudden Loss of Vehicle Control at Highway Speed Complaint Summary: While driving at highway speed, I experienced a sudden and extremely loud bang from the rear of the vehicle. Immediately afterward, I lost complete control of the rear end, accompanied by violent clanking and grinding noises from the driveline area. The gearbox then stalled, leaving the vehicle disabled in the middle of the highway. Upon inspection, it was determined that a rear differential mounting bolt had sheared, causing the differential to shift violently out of position. This sudden movement resulted in the driveshaft breaking, which further destabilized the vehicle and led to a severe and immediate loss of control. This failure occurred without warning and created an extremely dangerous situation. The sudden loss of drivetrain integrity at highway speed placed both myself and nearby motorists at serious risk of a crash. A component as critical as a differential mount or driveshaft should not fail under normal operating conditions. This incident strongly indicates a serious design or manufacturing defect affecting the vehicle’s powertrain and structural safety. Requested Action: I urge the NHTSA to investigate rear differential mounting and driveshaft failures on this vehicle model. Such failures can lead to catastrophic loss of control, and immediate attention is necessary to prevent future incidents and ensure driver safety.

ELECTRICAL SYSTEM — Filed 09/14/2024

The TCB Module and Antenna failed due to a water leak through the sealed roof mounted "Shark Fin" Antenna on top of my vehicle. The vehicle is not completely safe to drive due to the failure of the TCB Module in which the Module activates the "Intelligent Emergency Call" in the case of an accident. Crash and airbag sensors activate an emergency call to the BMW call center in the process, a set of relevant data such as how many passengers and their presumed condition or injury as well as the exact position of the my vehicle is sent automatically to the BMW call center and the nearest emergency service provider. The problem has been inspected and confirmed by my local BMW dealer. There is a warning on my odometer that states "Emergency call system not available."

UNKNOWN OR OTHER — Filed 10/19/2022

We were towing a rental travel trailer (~3500 Ib), going east bound on highway 80 near Martinez, CA. The travel trailer suddenly went into oscillation, the amplitude got larger and larger, and finally both SUV and trailer landed on the sides on the embankment. The SUV was supposedly in "tow" mode, so the feature "Trailer Stabilization Control" should have been activated to reduce the sway/oscillation (and perhaps issued some warnings). However, we only got traction control alarm just prior to the crash.

ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL — Filed 05/20/2022

On May 20, 2022 at around 10 AM. I pulled into my work parking lot. I proceeded to park the car in front of the main building. I put the car on park but the car accelerated on its own at high speed. It curved around the bushes yanking them out and then smashed into the building. The airbags opened. I called 911 for help. Ambulance took me to a hospital nearby. I lost a lot of blood due to a large cut in my mouth. I had some other minor injuries including a fracture in my sternum and nose.

POWER TRAIN,ELECTRICAL SYSTEM — Filed 01/27/2022

My digital gauges were frequently going off center in my vehicle. I scheduled service with the dealer however they did not have a loaner available for weeks so they scheduled the appointment for a few weeks out, my car subsequently completely died on the road and after a minute or two I was rear ended by a truck and the car was completely totaled.

ELECTRICAL SYSTEM,SERVICE BRAKES — Filed 10/15/2019

AUTOMATIC BRAKING SPONTANEOUSLY ACTIVATED WITHOUT CAUSE. HAPPENED 2 TIMES. MOST RECENT INCIDENT CAUSED INJURIES TO THE DRIVER AND ALMOST CAUSED A SEVERE ACCIDENT. THIS IS A FULL STOP FROM APPROXIMATELY 40 MPH