U.S. public vehicle records

2020 Bmw M340I problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

53 owner complaints analyzed

10 distinct recall campaigns

37,331 mi median reported failure mileage

Scope: 2020 model year. Data updated: 2026-10-01 (October 1, 2026). 6 complaints include usable failure mileage. View data status.

Owner-reported patterns

Most common problems

Engine is the most frequently named component, appearing in 38 of 53 complaints (71.7%). A complaint can name multiple components.

Recurring terms in complaint narratives
Topic	Matching reports	Share of complaints
Engine operation	4	7.5%
Electrical and battery issues	4	7.5%
Braking behavior	3	5.7%
Steering behavior	3	5.7%
Fuel system concerns	1	1.9%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Engine

Unknown Or Other

Electrical System

Engine And Engine Cooling

Fuel/Propulsion System

Power Train

Tires

Engine And Engine Cooling:Exhaust System:Emission Control:Crankcase (Pcv)

Component breakdown data
Category	Count
Engine	38
Unknown Or Other	9
Electrical System	6
Engine And Engine Cooling	3
Fuel/Propulsion System	3
Power Train	2
Tires	2
Engine And Engine Cooling:Exhaust System:Emission Control:Crankcase (Pcv)	1

Engine: 38; Unknown Or Other: 9; Electrical System: 6; Engine And Engine Cooling: 3; Fuel/Propulsion System: 3; Power Train: 2; Tires: 2; Engine And Engine Cooling:Exhaust System:Emission Control:Crankcase (Pcv): 1

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000

25,000 to 49,999

50,000 to 74,999

75,000 to 99,999

100,000 to 149,999

150,000 and above

Under 25,000: 2; 25,000 to 49,999: 2; 50,000 to 74,999: 1; 75,000 to 99,999: 1; 100,000 to 149,999: 0; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (2). 47 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2020

2021

2023

2024

2025

2026

2020: 3; 2021: 1; 2023: 9; 2024: 8; 2025: 12; 2026: 20

Pattern summary

Engine leads the component reports. Engine operation appears in 4 complaint narratives. Electrical and battery issues appears in 4 complaint narratives. Braking behavior appears in 3 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11686855 · 2025-09-12 (September 12, 2025)

The contact owns a 2020 BMW M340I. The contact stated that while merging onto the highway and accelerating, there was an abnormally loud banging sound coming from the vehicle before the vehicle stalled. The contact was able to coast forward. There were no warning lights illuminated. The contact removed the panels, and there was metal falling out. The contact stated that there was a sizable hole in the engine, and metal was showing from the cam plate and oil pump. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The…

Owner-reported narrative. 59,015 miles reported. Look up ODI 11686855 at NHTSA ↗

Owner report 11730475 · 2026-04-10 (April 10, 2026)

Safety Hazard: Oil Pump Failure Leading to Sudden Engine Stall (BMW B58TU engines) Description of Defect: The oil pump module in the 2020 BMW M340i (G20) contains internal plastic components that are prone to thermal degradation and premature failure. These plastic parts can crack or disintegrate, causing a sudden loss of oil pressure. Increasing wear on internal engine components and even leading to irreversible engine damage. Safety Risk: A failure of the oil pump leads to insufficient lubrication of critical engine components, which can r…

Owner-reported narrative. Look up ODI 11730475 at NHTSA ↗

Owner report 11611038 · 2024-08-26 (August 26, 2024)

Starter went bad which lead to shortage within the lithium ion battery and regular battery. Car came to a stop and did not move in an intersection, blocking both lanes of traffic. Furthermore, car could not be put into neutral as it could not be started. There was smoke emanating from the engine on further restart attempts. Car had to be towed where it was determine this was the problem. Warning message during re-start "engine overheated" though temperate guage suggested it was still cold.

Owner-reported narrative. Look up ODI 11611038 at NHTSA ↗

Owner report 11631042 · 2024-12-16 (December 16, 2024)

The starter malfunctioned causing electrical damage to the motor and related components. Although there is literature that exists that this is a potential problem for this vehichle, BMW refuses to fix the problem and is asking me to pay. My warranty is expired by 4 months, but I have only 37,800 miles. The fact that there are 105K vehicles with this potential problem is evidence that this problem exists. They should be paying for what is an obvious manufacturer defect.

Owner-reported narrative. Look up ODI 11631042 at NHTSA ↗

Owner report 11521806 · 2023-05-13 (May 13, 2023)

Oil measurement fails at 20%, unable to tell how much oil is in engine, can lead to severe engine damage where the engine seizes and you loose power brakes and steering. Dealer says only fix is oil pump replacement.

Owner-reported narrative. Look up ODI 11521806 at NHTSA ↗

Owner report 11655346 · 2025-04-18 (April 18, 2025)

I cruised on a city street at the speed limit. The light turned red and I came to a full stop. The start/stop system was activated and the engine “stopped” to conserve power while my foot was on the brake. The light turned green and I took my foot off the brake, the engine failed to start and did not start with countless attempts. Digital cluster and CarPlay proceeded to work, exterior lights work. Called a tow to the nearest BMW dealership for assistance.

Owner-reported narrative. Look up ODI 11655346 at NHTSA ↗

Owner report 11658972 · 2025-05-05 (May 5, 2025)

My vehicle doesn’t read the oil level since the fuel pump that BMW used to manufacture the car is made out of plastic material. There has been hundred of complaints about the same issue with the oil pump not working properly due to the fact that BMW used plastic instead of metal etc. I would like for the NHTSA to take a look at this issue and please consider making it a recall for the users that are having this “Oil Pump” issue please thank you.

Owner-reported narrative. Look up ODI 11658972 at NHTSA ↗

Explore the data

Vehicle analysis explorer

Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.

Data completeness

53 unique complaints in this selection. Analysis snapshot: 2026-10-01.

11.3%Usable mileage6 / 53 records

100.0%Valid incident date53 / 53 records

100.0%Valid filing date53 / 53 records

100.0%Ordered incident and filing dates53 / 53 records

Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.

Problems by model year

Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.

From model yearThrough model year

Component complaint heatmap
Component	2019	2020	2021	2022	2023
Engine	0Unavailable No examples available for this selection.	3871.7% ODI 11517782 The engine oil pump has failed. The part is available for inspection. The failed oil pump causes the engine to blow up, leaving oil and coolant behind on the road as hazards and causing our vehicle violently spin out on the road. The problem has been reproduced multiple times and claimed by bmw dealerships to be faulty on multiple occasions. Upon further research, it has affected 80% of the 2019 and 2020 g series chassis vehicles with the B58tu engine. BMW has a known problem of failed oil pump. As has my own 2020 bmw m340i. The only warnings w… Look up ODI 11517782 at NHTSA ↗	763.6% ODI 11553343 At approximately 20,000 miles, vehicle indicated excessively low oil. The dealer indicated oil level was excessively low but did not identify the problem,. The vehicle was filled and returned to owner. Within 1000 miles, the incident occurred again. Dealer replaced replaced the valve cover claiming that was the issue. Now within +/- 1000 miles, the oil level is again excessively low. I happen to have another identical BMW of the same year and same mileage having exactly the same problem (filing separate complaint). Look up ODI 11553343 at NHTSA ↗	114.3% ODI 11648018 Water pump failure and coolant reservoir leak. Look up ODI 11648018 at NHTSA ↗	0Unavailable No examples available for this selection.
Unknown Or Other	0Unavailable No examples available for this selection.	917.0% ODI 11339650 · 5,100 mi I WAS DRIVING ON THE HIGHWAY AT APPROXIMATELY 70 MPH, THE POSTED LIMIT, WHEN ALL OF A SUDDEN THE SUNROOF EXPLODED. IT SOUNDED LIKE A GUNSHOT AND I ALMOST LOST CONTROL OF THE VEHICLE. LUCKILY THE HEADLINER WAS CLOSED SO THE GLASS DID NOT ENTER THE CABIN. THERE WERE NO VEHICLES IN FRONT OF US FOR AT LEAST 1 MILE AND NO OVERPASSES OR ROCKS THAT I SAW OR HEARD HITTING THE VEHICLE. IT IS A STOCK VEHICLE WITH 5200 MILES ON IT. Look up ODI 11339650 at NHTSA ↗	00.0% No examples available for this selection.	114.3% ODI 11715883 On the day of purchase, while traveling at approximately 70mph on the Florida Turnpike, a large section of the lower dashboard assembly detached and fell onto my feet, obstructing access to the pedals., the vehicle displayed a "Powertrain Failure" warning light. Subsequent inspection of the tires revealed extreme pressure variances (ranging from 33 to 41 PSI) and multiple "sticky" or stuck tire valves, one of which remained open and caused rapid deflation. These defects represent a significant failure of the seller's advertised "150-point inspe… Look up ODI 11715883 at NHTSA ↗	0Unavailable No examples available for this selection.
Electrical System	0Unavailable No examples available for this selection.	611.3% ODI 11610022 Brought my car in for a starter recall picked it up next day and drove home then came out to turn my vehicle on again and it wouldn’t start. Burning smell from engine bay as well. Returned the car they inspected it and told me a faulty starter. When I brought the car in it was in perfect working condition I only brought it for the recall. I was then held accountable for 25% of repair costs. Look up ODI 11610022 at NHTSA ↗	218.2% ODI 11738468 Here’s a strong version that sounds frustrated but still credible and harder to dismiss: I’ve owned many vehicles over the years, and this BMW has been, without question, the most problematic car I’ve ever had. The list of issues has been absurd for a vehicle in this price range and from a brand that markets itself as a premium luxury manufacturer. The sunroof failed, I’ve had multiple tire blowouts under normal driving conditions, the drive bar/suspension was bent from what should have been a routine road bump, the engine oil housing/compone… Look up ODI 11738468 at NHTSA ↗	114.3% ODI 11738601 The starter in my 2022 BMW M340I sedan was faulty after 54,000 miles. It began to take two attempts to start the vehicle each time and was at risk of not starting. The first attempt all electrical components would turn on but the ignition was unable to start the engine. Then the second attempt was generally successful. I took it to the dealer and had to replace my starter to return the vehicle to normal operation. BMW has recalled tens of thousands of other starters including my model but not yet for the 2022 BMW M340i I was told. Look up ODI 11738601 at NHTSA ↗	0Unavailable No examples available for this selection.
Power Train	0Unavailable No examples available for this selection.	23.8% ODI 11697131 My oil pump went out causing Low pressure codes and resulting in me paying over 2 grand to get it repaired, They super seeded the oil pump they used to use with a new one and theirs many other reports online etc of the 2020 bmw m340 oil pump going out due to plastic internals which can lead to engine failure . Look up ODI 11697131 at NHTSA ↗	218.2% ODI 11656393 While driving through an intersection and making a left turn, a failure of the engine water pump pulley caused the pulley to break apart. This led to damage to the coolant line and tensioner, sudden coolant loss, and the serpentine belt slipping off. The failure occurred mid-turn, causing the vehicle to skid and momentarily lose steering control. I narrowly avoided a collision with an oncoming vehicle that was stopped at a red light. The vehicle was towed to an independent repair shop, where mechanics confirmed that the water pump pulley had … Look up ODI 11656393 at NHTSA ↗	114.3% ODI 11715883 On the day of purchase, while traveling at approximately 70mph on the Florida Turnpike, a large section of the lower dashboard assembly detached and fell onto my feet, obstructing access to the pedals., the vehicle displayed a "Powertrain Failure" warning light. Subsequent inspection of the tires revealed extreme pressure variances (ranging from 33 to 41 PSI) and multiple "sticky" or stuck tire valves, one of which remained open and caused rapid deflation. These defects represent a significant failure of the seller's advertised "150-point inspe… Look up ODI 11715883 at NHTSA ↗	0Unavailable No examples available for this selection.
Fuel/Propulsion System	0Unavailable No examples available for this selection.	35.7% ODI 11517843 Oil pump appears to have failed. Told plastic components inside pump. BMW issued a new part number and changed pump to all metal internals. This is standard on later production dates now. Pump failure causes engine failure and oil gauge failure to read out. Head gasket replacement which may or may not be related. Look up ODI 11517843 at NHTSA ↗	19.1% ODI 11738468 Here’s a strong version that sounds frustrated but still credible and harder to dismiss: I’ve owned many vehicles over the years, and this BMW has been, without question, the most problematic car I’ve ever had. The list of issues has been absurd for a vehicle in this price range and from a brand that markets itself as a premium luxury manufacturer. The sunroof failed, I’ve had multiple tire blowouts under normal driving conditions, the drive bar/suspension was bent from what should have been a routine road bump, the engine oil housing/compone… Look up ODI 11738468 at NHTSA ↗	00.0% No examples available for this selection.	0Unavailable No examples available for this selection.
Engine And Engine Cooling	0Unavailable No examples available for this selection.	35.7% ODI 11659699 · 28,162 mi The contact owns a 2020 BMW M340I. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 24V576000 (Electrical System, Engine and Engine Cooling); however, the repair failed to prevent the failure from occurring. The contact stated that shortly after the recall repair was completed, the vehicle hesitated to start. The contact stated that several employees at the local dealer attempted to start the vehicle. The vehicle started; however, several months later, the failure reoccurred. An appointment with the dealer was sched… Look up ODI 11659699 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.	0Unavailable No examples available for this selection.
Service Brakes	0Unavailable No examples available for this selection.	11.9% ODI 11684702 Electronic parking brake malfunction, disengage ineffective. Ongoing 2020 BMW mechanical issue, multiple dealer submissions, BMW refuses to open active recall. BMW requires $3,000 center panel replacement, out-of-pocket. Look up ODI 11684702 at NHTSA ↗	19.1% ODI 11491782 · 4,000 mi The contact owns a 2021 BMW M340I. The contact stated while driving various speeds, the vehicle independently shifted from reverse(R) to drive(D) to park(P). The contact stated that while driving approximately 10 MPH and attempting to stop the vehicle, the brake pedal was depressed and went to the floorboard. The contact stated that the brake failed to operate as designed. The vehicle was towed to a dealer who diagnosed that the vacuum pump needed to be replaced. The vehicle was repaired. The contact stated that an unknown transmission repair w… Look up ODI 11491782 at NHTSA ↗	114.3% ODI 11485941 The brakes failed at high speed. Yes the vehicle is available for inspection. The car hit a barrier and flipped on its roof. Yes, I and my passenger were both at risk of serious injury. No independent confirmation has taken place at this time. No warning lights indicated malfunction. Look up ODI 11485941 at NHTSA ↗	0Unavailable No examples available for this selection.
Steering	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	19.1% ODI 11692586 Started as low creaking noise coming from front left wheel. Slow speeds, over small bumps. Over time (one month), creaking noises became louder and more frequent. At that time, steering was starting to feel stiff when turning to the left. Taken to 2 BMW dealerships who said it was just a noise and that both tie rods would have to be replaced. Upon further investigation, these noises and handling are a result of the torque being too tight at the factory upon manufacturer. Look up ODI 11692586 at NHTSA ↗	228.6% ODI 11545199 · 300 mi The contact owns a 2022 BMW M340I. The contact stated that after starting the vehicle, the power steering failure message was displayed, and the steering wheel was difficult to turn in either direction. After approximately one hour, the vehicle was restarted, the failure was self-corrected, and the steering wheel operated as normal. The vehicle was taken to the local dealer on two separate occasions due to the failure, but no cause for the failure was found. The vehicle was not repaired. The manufacturer was notified of the failure, but no assi… Look up ODI 11545199 at NHTSA ↗	0Unavailable No examples available for this selection.

Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.

Failure mileage by component

Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.

Component failure mileage distribution
Component	Mileage range (25th–75th percentile)	Median	Usable records	Examples
Unknown Or Other	Too few reports for a range	5,100 mi	1 (sparse)	ODI 11339650 · 5,100 mi I WAS DRIVING ON THE HIGHWAY AT APPROXIMATELY 70 MPH, THE POSTED LIMIT, WHEN ALL OF A SUDDEN THE SUNROOF EXPLODED. IT SOUNDED LIKE A GUNSHOT AND I ALMOST LOST CONTROL OF THE VEHICLE. LUCKILY THE HEADLINER WAS CLOSED SO THE GLASS DID NOT ENTER THE CABIN. THERE WERE NO VEHICLES IN FRONT OF US FOR AT LEAST 1 MILE AND NO OVERPASSES OR ROCKS THAT I SAW OR HEARD HITTING THE VEHICLE. IT IS A STOCK VEHICLE WITH 5200 MILES ON IT. Look up ODI 11339650 at NHTSA ↗
Electrical System	Too few reports for a range	28,162 mi	1 (sparse)	ODI 11659699 · 28,162 mi The contact owns a 2020 BMW M340I. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 24V576000 (Electrical System, Engine and Engine Cooling); however, the repair failed to prevent the failure from occurring. The contact stated that shortly after the recall repair was completed, the vehicle hesitated to start. The contact stated that several employees at the local dealer attempted to start the vehicle. The vehicle started; however, several months later, the failure reoccurred. An appointment with the dealer was sched… Look up ODI 11659699 at NHTSA ↗
Engine And Engine Cooling	Too few reports for a range	59,015 mi	3 (sparse)	ODI 11659699 · 28,162 mi The contact owns a 2020 BMW M340I. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 24V576000 (Electrical System, Engine and Engine Cooling); however, the repair failed to prevent the failure from occurring. The contact stated that shortly after the recall repair was completed, the vehicle hesitated to start. The contact stated that several employees at the local dealer attempted to start the vehicle. The vehicle started; however, several months later, the failure reoccurred. An appointment with the dealer was sched… Look up ODI 11659699 at NHTSA ↗ ODI 11686855 · 59,015 mi The contact owns a 2020 BMW M340I. The contact stated that while merging onto the highway and accelerating, there was an abnormally loud banging sound coming from the vehicle before the vehicle stalled. The contact was able to coast forward. There were no warning lights illuminated. The contact removed the panels, and there was metal falling out. The contact stated that there was a sizable hole in the engine, and metal was showing from the cam plate and oil pump. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The… Look up ODI 11686855 at NHTSA ↗ ODI 11707622 · 82,500 mi The contact owns a 2020 BMW M340I. The contact stated that upon starting the vehicle, the contact noticed a thick white smoke coming out of the exhaust pipes. In addition, the contact stated that there was an abnormal ticking sound coming from the engine while idling. There was no warning light illuminated. The vehicle had not yet been diagnosed or repaired. The manufacturer had yet to be notified of the failure. The failure mileage was approximately 82,500. Look up ODI 11707622 at NHTSA ↗
Tires	Too few reports for a range	15,000 mi	1 (sparse)	ODI 11322573 · 15,000 mi TL* THE CONTACT OWNS A 2020 BMW M340I, EQUIPPED WITH PIRELLI TIRES, TIRE LINE: P7 CINTURATO, TIRE SIZE 225/40/R19, DOT NUMBER: NOT AVAILABLE. THE CONTACT STATED THAT WHILE THE VEHICLE WAS AT AN INDEPENDENT MECHANIC FOR SUSPENSION INSPECTION, THE MECHANIC BECAME AWARE OF BUBBLES IN THE DRIVER'S AND PASSENGER'S SIDE FRONT TIRES. THE PASSENGER FRONT TIRE ALSO EXHIBITED A SPLIT. THE TIRES WERE NOT REPLACED. THE MANUFACTURER WAS CONTACTED AND INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 15,000. Look up ODI 11322573 at NHTSA ↗
Engine And Engine Cooling:Exhaust System:Emission Control:Crankcase (Pcv)	Too few reports for a range	46,500 mi	1 (sparse)	ODI 11714559 · 46,500 mi The contact owns a 2020 BMW M340I. The contact stated that after an oil change was performed by an independent mechanic, there was a large amount of gray smoke coming from the exhaust pipe while accelerating from a complete stop. There was no warning light illuminated during the failure. The vehicle was taken to various independent mechanics, and the failure was associated with the PCV (Positive Crankcase Ventilation) valve cover. The contact stated that there was a recall on other model vehicles for the failure; however, neither the VIN nor th… Look up ODI 11714559 at NHTSA ↗

Complaint and recall timeline

Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.

ComponentPeriod

Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.

Monthly counts, recall campaigns and complaint examples

Monthly complaint and recall timeline
Month	Complaints	Campaigns announced	Examples
2024-11	0	None	No examples available for this selection.
2024-12	2	None	ODI 11629307 Engine starter was faulty resulting in repeated attempts to start the engine using excessively long starting attempts and warnings from my car of overheating. At a traffic light, my car went into auto-off and then shut down and I was unable to restart the car leaving me stuck at a busy intersection. I received police support and a tow to the BMW Buena Park dealership. The dealership informed me the issue could be related to an open recall (B120524) which relates to the starter. The dealership replaced the starter but claims the issue is not rel… Look up ODI 11629307 at NHTSA ↗ ODI 11631042 The starter malfunctioned causing electrical damage to the motor and related components. Although there is literature that exists that this is a potential problem for this vehichle, BMW refuses to fix the problem and is asking me to pay. My warranty is expired by 4 months, but I have only 37,800 miles. The fact that there are 105K vehicles with this potential problem is evidence that this problem exists. They should be paying for what is an obvious manufacturer defect. Look up ODI 11631042 at NHTSA ↗
2025-01	0	None	No examples available for this selection.
2025-02	0	None	No examples available for this selection.
2025-03	2	None	ODI 11646288 Oil pump manufacturing fault. One of the internal components on the oil pump for these B58 engines contains a ring that is made of plastic. Due to its the nature of this type of material, when it is heated and cooled, over time it becomes brittle and cracks. Damage to this internal component is leading to oil pump failure, and eventually engine failure. There is no recall on this yet, which is highly concerning. Basically my oil pump is a ticking time bomb waiting to fail, and BMW refuses to address the issue. Attached are photos of different… Look up ODI 11646288 at NHTSA ↗ ODI 11648849 I am unable to read the oil level in my 2020 M340i. Upon checking the oil pressure, the oil pressure goes above 45psi which is the cutoff for the measurement check. Under heavy acceleration, the oil pressure will go over 90psi. My car needs the oil pump to be replaced. The plastic ring surrounding the oil pump for variable oil pressure will crack and lead to a high oil pressure scenario, eventually leading to catastrophic engine damage. BMW has refused to acknowledge this even though they installed an updated all-metal oil pump in 2021 and newe… Look up ODI 11648849 at NHTSA ↗
2025-04	2	None	ODI 11652542 Car will not measure oil past 20%. Seems like lots of 2020 models have a faulty production oil pump. Car is now out of warranty and dealer charged $5000 to fix the issue but do not know 100% if oil pump replacement will fix it. BMW changed the oil pump in the later models but did not mention anything about any recalls or replacements. Unacceptable. Look up ODI 11652542 at NHTSA ↗ ODI 11655346 I cruised on a city street at the speed limit. The light turned red and I came to a full stop. The start/stop system was activated and the engine “stopped” to conserve power while my foot was on the brake. The light turned green and I took my foot off the brake, the engine failed to start and did not start with countless attempts. Digital cluster and CarPlay proceeded to work, exterior lights work. Called a tow to the nearest BMW dealership for assistance. Look up ODI 11655346 at NHTSA ↗
2025-05	2	None	ODI 11658972 My vehicle doesn’t read the oil level since the fuel pump that BMW used to manufacture the car is made out of plastic material. There has been hundred of complaints about the same issue with the oil pump not working properly due to the fact that BMW used plastic instead of metal etc. I would like for the NHTSA to take a look at this issue and please consider making it a recall for the users that are having this “Oil Pump” issue please thank you. Look up ODI 11658972 at NHTSA ↗ ODI 11659699 · 28,162 mi The contact owns a 2020 BMW M340I. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 24V576000 (Electrical System, Engine and Engine Cooling); however, the repair failed to prevent the failure from occurring. The contact stated that shortly after the recall repair was completed, the vehicle hesitated to start. The contact stated that several employees at the local dealer attempted to start the vehicle. The vehicle started; however, several months later, the failure reoccurred. An appointment with the dealer was sched… Look up ODI 11659699 at NHTSA ↗
2025-06	0	None	No examples available for this selection.
2025-07	0	None	No examples available for this selection.
2025-08	0	None	No examples available for this selection.
2025-09	4	None	ODI 11684702 Electronic parking brake malfunction, disengage ineffective. Ongoing 2020 BMW mechanical issue, multiple dealer submissions, BMW refuses to open active recall. BMW requires $3,000 center panel replacement, out-of-pocket. Look up ODI 11684702 at NHTSA ↗ ODI 11686855 · 59,015 mi The contact owns a 2020 BMW M340I. The contact stated that while merging onto the highway and accelerating, there was an abnormally loud banging sound coming from the vehicle before the vehicle stalled. The contact was able to coast forward. There were no warning lights illuminated. The contact removed the panels, and there was metal falling out. The contact stated that there was a sizable hole in the engine, and metal was showing from the cam plate and oil pump. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The… Look up ODI 11686855 at NHTSA ↗ ODI 11689265 Hi. I’d like to point out I have not had an incident YET thankfully. However, I want to highlight that the early M340i production releases (2019 and 2020) are HIGHLY likely to experience catastrophic engine failure due to an oil pump being made of plastic on some models. Of the 20 or so complaints listed under this vehicle on NHTSA, I’ve already seen PLENTY of complaints regarding this issue and people actually experiencing this issue. I believe if a car has a fair chance of causing catastrophic damage to its engine on its own, it poses as a sa… Look up ODI 11689265 at NHTSA ↗
2025-10	0	None	No examples available for this selection.
2025-11	1	None	ODI 11697131 My oil pump went out causing Low pressure codes and resulting in me paying over 2 grand to get it repaired, They super seeded the oil pump they used to use with a new one and theirs many other reports online etc of the 2020 bmw m340 oil pump going out due to plastic internals which can lead to engine failure . Look up ODI 11697131 at NHTSA ↗
2025-12	1	None	ODI 11707622 · 82,500 mi The contact owns a 2020 BMW M340I. The contact stated that upon starting the vehicle, the contact noticed a thick white smoke coming out of the exhaust pipes. In addition, the contact stated that there was an abnormal ticking sound coming from the engine while idling. There was no warning light illuminated. The vehicle had not yet been diagnosed or repaired. The manufacturer had yet to be notified of the failure. The failure mileage was approximately 82,500. Look up ODI 11707622 at NHTSA ↗
2026-01	1	None	ODI 11714559 · 46,500 mi The contact owns a 2020 BMW M340I. The contact stated that after an oil change was performed by an independent mechanic, there was a large amount of gray smoke coming from the exhaust pipe while accelerating from a complete stop. There was no warning light illuminated during the failure. The vehicle was taken to various independent mechanics, and the failure was associated with the PCV (Positive Crankcase Ventilation) valve cover. The contact stated that there was a recall on other model vehicles for the failure; however, neither the VIN nor th… Look up ODI 11714559 at NHTSA ↗
2026-02	4	None	ODI 11718142 The ignition start is not clean and delayed. There is already a recall 25V-644. There is "No remedy available" for this model per inquiry with local BMW dealer in Buffalo NY 14221 made 3 weeks ago. I am fearful of an electrical fire from overheating. I do smell an intermittent burning smell but it may in the outside environment rather than from under my hood. Look up ODI 11718142 at NHTSA ↗ ODI 11721090 Oil Pump Failed its common issue on them but no recall Look up ODI 11721090 at NHTSA ↗ ODI 11721135 Oil pump in B58 BMW engines 2019-2022 has been a major safety concern that results in catastrophic failure while driving the vehicle. All because of BMW using a plastic component and quietly changed it, meanwhile hundreds of people had a major oil leak and engine seizures on hwy and $5k+ repairs. Look up ODI 11721135 at NHTSA ↗
2026-03	6	None	ODI 11721301 I am reporting a safety concern involving BMW vehicles equipped with the B58 Technical Update (B58TU) engine, commonly found in model years 2019–2021. These vehicles utilize a variable-displacement engine oil pump containing an internal thermoplastic adjusting component responsible for regulating oil pressure. Field failures are increasingly being reported in which this internal component fractures, resulting in sudden loss or instability of engine oil pressure. The failure frequently occurs during cold-start operation in low ambient temperat… Look up ODI 11721301 at NHTSA ↗ ODI 11724900 EXHIBITING SIGNS OF NOT BEING ABLE TO READ OIL LEVELS WHICH IS A POTENTIAL SIGN OF OIL PUMP FAILURE DUE TO PLASTIC INTERNAL COMPONENTS THAT HAS OCCURED IN 2020 MODELS. Look up ODI 11724900 at NHTSA ↗ ODI 11725310 I am reporting a safety concern involving BMW vehicles equipped with the B58 Technical Update (B58TU) engine, commonly found in model years 2019–2021. These vehicles utilize a variable-displacement engine oil pump containing an internal thermoplastic adjusting component responsible for regulating oil pressure. Field failures are increasingly being reported in which this internal component fractures, resulting in sudden loss or instability of engine oil pressure. The failure frequently occurs during cold-start operation in low ambient temperat… Look up ODI 11725310 at NHTSA ↗
2026-04	2	None	ODI 11730475 Safety Hazard: Oil Pump Failure Leading to Sudden Engine Stall (BMW B58TU engines) Description of Defect: The oil pump module in the 2020 BMW M340i (G20) contains internal plastic components that are prone to thermal degradation and premature failure. These plastic parts can crack or disintegrate, causing a sudden loss of oil pressure. Increasing wear on internal engine components and even leading to irreversible engine damage. Safety Risk: A failure of the oil pump leads to insufficient lubrication of critical engine components, which can r… Look up ODI 11730475 at NHTSA ↗ ODI 11731034 Component: Front differential / xDrive drivetrain system. Vehicle is available for inspection upon request. Description: My 2020 BMW M340i xDrive has exhibited a persistent whining noise from the front drivetrain since approximately 38,000 miles. The noise varies with speed and load and appears to originate from the front differential. A BMW dealership inspected the vehicle and acknowledged the noise but declined repair under warranty. This condition is consistent with premature wear of internal differential components such as gears or bearin… Look up ODI 11731034 at NHTSA ↗
2026-05	1	None	ODI 11737366 Engine oil pump is failing. Early production 2019-2020 model years are made of plastic which can crack and break resulting in engine failure while driving. This is a well documented issue regarding the BMW B58 Engine (2nd Generation) They have since updated the engine oil pump part to a durable metal pump on newer models leaving the older ones with the bad part with no resolution. The vehicle no longer measures the oil level and is a symptom of the pump starting to fail. There is no telling when it may go out and it will be too late at that poi… Look up ODI 11737366 at NHTSA ↗
2026-06	0	None	No examples available for this selection.
2026-07	3	None	ODI 11748524 I am submitting this complaint regarding a potential safety defect involving the engine lubrication system on my 2020 BMW M340i with the B58 engine. The vehicle was purchased used from a single owner with low mileage and comprehensive maintenance records, with no indication of prior engine or lubrication issues. While traveling at highway speed, the vehicle suddenly displayed a low oil pressure warning and simultaneously entered a protective shutdown strategy, resulting in a significant loss of engine power. This forced me to rapidly slow down … Look up ODI 11748524 at NHTSA ↗ ODI 11750244 Safety Hazard: Oil Pump Failure Leading to Sudden Engine Stall (BMW B58TU engines) Description of Defect: The oil pump module in the 2020 BMW M340i (G20) and many other models between 2019-2020 contains internal plastic components that are prone to thermal degradation and premature failure. These plastic parts can crack or disintegrate, causing a sudden loss of oil pressure. BMW corrected this in later models with metal parts but failed to issue a recall or the older models containing plastic parts. Safety Risk: A failure of the oil pump lead… Look up ODI 11750244 at NHTSA ↗ ODI 11754090 Component Involved:Engine Mechanical / Variable-Displacement Engine Oil Pump (Part #11418635032 / Updated #11419895359) Description of Safety Hazard / Defect:The early-generation B58TU engine features a variable-displacement oil pump equipped with an internal thermoplastic (plastic) adjusting ring. Due to continuous thermal cycling and mechanical stress, this plastic ring is prone to cracking and shattering without warning.When this internal component disintegrates, it causes an immediate loss of oil pressure to critical engine components. This… Look up ODI 11754090 at NHTSA ↗
2026-08	1	None	ODI 11756783 I am reporting a premature oil pump failure on my 2020 BMW M340i xDrive with 42 thousand miles. The vehicle has been well maintained and has not experienced any oil pressure warning lights. However, the electronic engine oil level measurement repeatedly fails to complete once the engine is fully warmed up. I have also received stored BMW fault code 21B2C7 relating to engine oil pressure plausibility/excessive oil pressure. The fault currently shows as inactive, but it was not present previously. I have monitored engine oil pressure using dia… Look up ODI 11756783 at NHTSA ↗
2026-09	2	None	ODI 11761189 Oil pump for the 2020 model is made with plastic internals. The passage that controls the flow of oil into your engine is made of plastic. The car didn’t even have 40,000 miles and the plastic broke causing the passage to be in a very close to shut position not allowing enough oil to enter the engine in higher rpm. The mechanic told me this is the biggest thing he is starting to see and he works for BMW Service center of Mamaroneck. He’s seen over 150+ B58TU (engine model) of the year 2020 with broken plastic in the oil pump. For the 2021 model… Look up ODI 11761189 at NHTSA ↗ ODI 11763922 I am reporting a safety concern involving BMW vehicles equipped with the B58 Technical Update (B58TU) engine, commonly found in model years 2019–2021. These vehicles utilize a variable-displacement engine oil pump containing an internal thermoplastic adjusting component responsible for regulating oil pressure. Field failures are increasingly being reported in which this internal component fractures, resulting in sudden loss or instability of engine oil pressure. The failure frequently occurs during cold-start operation in low ambient temperatur… Look up ODI 11763922 at NHTSA ↗
2026-10 (partial)	0	None	No examples available for this selection.

Emerging complaint spikes

Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.

This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.

No complete months meet the spike thresholds for this selection.

Equal-age model-year comparison

Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.

Observation windowFirst model yearSecond model year

2022: 2 complaints · 2023: 0 complaints

Equal observation windows
Model year	Through age 0	Through age 1	Through age 2
2022	2	2	2
2023	0	0	0

Date coverage across each selected cohort

Date basis for all complaints in selected model years
Year	Incident dates used	Filing date fallbacks	Excluded dates
2022	7	0	0
2023	0	0	0

Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.

Components reported together

Each cell counts unique complaints naming both components. Open a nonzero cell for examples.

Component co-occurrence matrix
Component	Engine	Unknown Or Other	Electrical System	Engine And Engine Cooling	Fuel/Propulsion System	Power Train	Tires	Engine And Engine Cooling:Exhaust System:Emission Control:Crankcase (Pcv)
Engine	—	6 ODI 11518176 Unable to read oil level, high or unusually alarming oil pressure. High oil pressure codes Look up ODI 11518176 at NHTSA ↗ ODI 11604564 Oil pump failure, causing inability to read oil level. Also flickering oil light on and off. After some research noticed it was happening to a lot of others as well due to oil pump being made with plastic internals. BMW has since updated to a new pump with metal internal the next year however never recalled old pumps. Look up ODI 11604564 at NHTSA ↗ ODI 11610022 Brought my car in for a starter recall picked it up next day and drove home then came out to turn my vehicle on again and it wouldn’t start. Burning smell from engine bay as well. Returned the car they inspected it and told me a faulty starter. When I brought the car in it was in perfect working condition I only brought it for the recall. I was then held accountable for 25% of repair costs. Look up ODI 11610022 at NHTSA ↗	3 ODI 11610022 Brought my car in for a starter recall picked it up next day and drove home then came out to turn my vehicle on again and it wouldn’t start. Burning smell from engine bay as well. Returned the car they inspected it and told me a faulty starter. When I brought the car in it was in perfect working condition I only brought it for the recall. I was then held accountable for 25% of repair costs. Look up ODI 11610022 at NHTSA ↗ ODI 11631042 The starter malfunctioned causing electrical damage to the motor and related components. Although there is literature that exists that this is a potential problem for this vehichle, BMW refuses to fix the problem and is asking me to pay. My warranty is expired by 4 months, but I have only 37,800 miles. The fact that there are 105K vehicles with this potential problem is evidence that this problem exists. They should be paying for what is an obvious manufacturer defect. Look up ODI 11631042 at NHTSA ↗ ODI 11718142 The ignition start is not clean and delayed. There is already a recall 25V-644. There is "No remedy available" for this model per inquiry with local BMW dealer in Buffalo NY 14221 made 3 weeks ago. I am fearful of an electrical fire from overheating. I do smell an intermittent burning smell but it may in the outside environment rather than from under my hood. Look up ODI 11718142 at NHTSA ↗	0	1 ODI 11518176 Unable to read oil level, high or unusually alarming oil pressure. High oil pressure codes Look up ODI 11518176 at NHTSA ↗	1 ODI 11697131 My oil pump went out causing Low pressure codes and resulting in me paying over 2 grand to get it repaired, They super seeded the oil pump they used to use with a new one and theirs many other reports online etc of the 2020 bmw m340 oil pump going out due to plastic internals which can lead to engine failure . Look up ODI 11697131 at NHTSA ↗	0	0
Unknown Or Other	6 ODI 11518176 Unable to read oil level, high or unusually alarming oil pressure. High oil pressure codes Look up ODI 11518176 at NHTSA ↗ ODI 11604564 Oil pump failure, causing inability to read oil level. Also flickering oil light on and off. After some research noticed it was happening to a lot of others as well due to oil pump being made with plastic internals. BMW has since updated to a new pump with metal internal the next year however never recalled old pumps. Look up ODI 11604564 at NHTSA ↗ ODI 11610022 Brought my car in for a starter recall picked it up next day and drove home then came out to turn my vehicle on again and it wouldn’t start. Burning smell from engine bay as well. Returned the car they inspected it and told me a faulty starter. When I brought the car in it was in perfect working condition I only brought it for the recall. I was then held accountable for 25% of repair costs. Look up ODI 11610022 at NHTSA ↗	—	1 ODI 11610022 Brought my car in for a starter recall picked it up next day and drove home then came out to turn my vehicle on again and it wouldn’t start. Burning smell from engine bay as well. Returned the car they inspected it and told me a faulty starter. When I brought the car in it was in perfect working condition I only brought it for the recall. I was then held accountable for 25% of repair costs. Look up ODI 11610022 at NHTSA ↗	0	1 ODI 11518176 Unable to read oil level, high or unusually alarming oil pressure. High oil pressure codes Look up ODI 11518176 at NHTSA ↗	0	0	0
Electrical System	3 ODI 11610022 Brought my car in for a starter recall picked it up next day and drove home then came out to turn my vehicle on again and it wouldn’t start. Burning smell from engine bay as well. Returned the car they inspected it and told me a faulty starter. When I brought the car in it was in perfect working condition I only brought it for the recall. I was then held accountable for 25% of repair costs. Look up ODI 11610022 at NHTSA ↗ ODI 11631042 The starter malfunctioned causing electrical damage to the motor and related components. Although there is literature that exists that this is a potential problem for this vehichle, BMW refuses to fix the problem and is asking me to pay. My warranty is expired by 4 months, but I have only 37,800 miles. The fact that there are 105K vehicles with this potential problem is evidence that this problem exists. They should be paying for what is an obvious manufacturer defect. Look up ODI 11631042 at NHTSA ↗ ODI 11718142 The ignition start is not clean and delayed. There is already a recall 25V-644. There is "No remedy available" for this model per inquiry with local BMW dealer in Buffalo NY 14221 made 3 weeks ago. I am fearful of an electrical fire from overheating. I do smell an intermittent burning smell but it may in the outside environment rather than from under my hood. Look up ODI 11718142 at NHTSA ↗	1 ODI 11610022 Brought my car in for a starter recall picked it up next day and drove home then came out to turn my vehicle on again and it wouldn’t start. Burning smell from engine bay as well. Returned the car they inspected it and told me a faulty starter. When I brought the car in it was in perfect working condition I only brought it for the recall. I was then held accountable for 25% of repair costs. Look up ODI 11610022 at NHTSA ↗	—	1 ODI 11659699 · 28,162 mi The contact owns a 2020 BMW M340I. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 24V576000 (Electrical System, Engine and Engine Cooling); however, the repair failed to prevent the failure from occurring. The contact stated that shortly after the recall repair was completed, the vehicle hesitated to start. The contact stated that several employees at the local dealer attempted to start the vehicle. The vehicle started; however, several months later, the failure reoccurred. An appointment with the dealer was sched… Look up ODI 11659699 at NHTSA ↗	0	0	0	0
Engine And Engine Cooling	0	0	1 ODI 11659699 · 28,162 mi The contact owns a 2020 BMW M340I. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 24V576000 (Electrical System, Engine and Engine Cooling); however, the repair failed to prevent the failure from occurring. The contact stated that shortly after the recall repair was completed, the vehicle hesitated to start. The contact stated that several employees at the local dealer attempted to start the vehicle. The vehicle started; however, several months later, the failure reoccurred. An appointment with the dealer was sched… Look up ODI 11659699 at NHTSA ↗	—	0	0	0	0
Fuel/Propulsion System	1 ODI 11518176 Unable to read oil level, high or unusually alarming oil pressure. High oil pressure codes Look up ODI 11518176 at NHTSA ↗	1 ODI 11518176 Unable to read oil level, high or unusually alarming oil pressure. High oil pressure codes Look up ODI 11518176 at NHTSA ↗	0	0	—	0	0	0
Power Train	1 ODI 11697131 My oil pump went out causing Low pressure codes and resulting in me paying over 2 grand to get it repaired, They super seeded the oil pump they used to use with a new one and theirs many other reports online etc of the 2020 bmw m340 oil pump going out due to plastic internals which can lead to engine failure . Look up ODI 11697131 at NHTSA ↗	0	0	0	0	—	0	0
Tires	0	0	0	0	0	0	—	0
Engine And Engine Cooling:Exhaust System:Emission Control:Crankcase (Pcv)	0	0	0	0	0	0	0	—

Co-reporting does not establish that one component caused another concern.

Recurring narrative patterns

Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.

Search patterns

3 patterns with matching reports.

Warning lights and dashboard alerts

10 mentions · 18.9% of complaints

Median mileage: 59,015 mi (3 usable records).

ODI 11354792

THE FRONT COLLISION SYSTEM DOES NOT WORK. EARLY WARNING RARELY COMES ON, AND IN A RECENT NEAR CRASH ON THE DALLAS NORTH TOLLWAY, IT NEVER CAME ON. EVERY NOW AND THEN, THE EARLY WARNING FRONT COLLISION WARNING WILL COME ON FOR A SECOND, BUT THERE IS NO REASON FOR IT. I TOOK IT TO THE LOCAL DEALERSHIP (CLASSIC BMW) AND THEY SAID IT IS OPERATING AS NORMAL ,ALTHOUGH TO PROVE IT THEY HAD TO TAILGATE CARS AT 75 MPH TO SIMPLY GET THE EARLY WARNING LIGHT TO ILLUMINATE A FEW TIMES. THEY NEVER GOT THE IMMINATE CRASH WARNING TO COME ON. THIS SYSTEM IS UNS…

Look up ODI 11354792 at NHTSA ↗

ODI 11686855 · 59,015 mi

Look up ODI 11686855 at NHTSA ↗

ODI 11707622 · 82,500 mi

The contact owns a 2020 BMW M340I. The contact stated that upon starting the vehicle, the contact noticed a thick white smoke coming out of the exhaust pipes. In addition, the contact stated that there was an abnormal ticking sound coming from the engine while idling. There was no warning light illuminated. The vehicle had not yet been diagnosed or repaired. The manufacturer had yet to be notified of the failure. The failure mileage was approximately 82,500.

Look up ODI 11707622 at NHTSA ↗

Matching rule

\b(warning light\w*|check engine|dashboard warning\w*|malfunction indicator)\b

Stalling or loss of power

5 mentions · 9.4% of complaints

Median mileage: 59,015 mi (1 usable records).

ODI 11686855 · 59,015 mi

Look up ODI 11686855 at NHTSA ↗

ODI 11730475

Look up ODI 11730475 at NHTSA ↗

ODI 11748524

I am submitting this complaint regarding a potential safety defect involving the engine lubrication system on my 2020 BMW M340i with the B58 engine. The vehicle was purchased used from a single owner with low mileage and comprehensive maintenance records, with no indication of prior engine or lubrication issues. While traveling at highway speed, the vehicle suddenly displayed a low oil pressure warning and simultaneously entered a protective shutdown strategy, resulting in a significant loss of engine power. This forced me to rapidly slow down …

Look up ODI 11748524 at NHTSA ↗

Matching rule

\b(stall\w*|loss of power|lost power|engine shut\w* off)\b

Steering assistance concerns

2 mentions · 3.8% of complaints

Median mileage: Unavailable (0 usable records).

ODI 11730475

Look up ODI 11730475 at NHTSA ↗

ODI 11750244

Safety Hazard: Oil Pump Failure Leading to Sudden Engine Stall (BMW B58TU engines) Description of Defect: The oil pump module in the 2020 BMW M340i (G20) and many other models between 2019-2020 contains internal plastic components that are prone to thermal degradation and premature failure. These plastic parts can crack or disintegrate, causing a sudden loss of oil pressure. BMW corrected this in later models with metal parts but failed to issue a recall or the older models containing plastic parts. Safety Risk: A failure of the oil pump lead…

Look up ODI 11750244 at NHTSA ↗

Matching rule

\b(power steer\w*|steering assist\w*|steering lock\w*|steering wheel lock\w*)\b