https://plaincars.com/make/bmw-m340i New NHTSA complaints and recalls filed for the BMW M340i. en-us Mon, 21 Sep 2026 20:04:32 GMT https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2177048 Sun, 15 Feb 2026 00:00:00 GMT 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. https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2177049 Sun, 15 Feb 2026 00:00:00 GMT 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. https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2173712 Thu, 05 Feb 2026 00:00:00 GMT 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 va https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2173713 Thu, 05 Feb 2026 00:00:00 GMT 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 va https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2173714 Thu, 05 Feb 2026 00:00:00 GMT 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 va https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2171708 Fri, 30 Jan 2026 00:00:00 GMT 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 C https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2161293 Mon, 29 Dec 2025 00:00:00 GMT 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 notifie https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2145286 Mon, 03 Nov 2025 00:00:00 GMT 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 . https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2145287 Mon, 03 Nov 2025 00:00:00 GMT 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 . https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2138271 Fri, 10 Oct 2025 00:00:00 GMT 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 https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2138272 Fri, 10 Oct 2025 00:00:00 GMT 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 https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2134979 Mon, 29 Sep 2025 00:00:00 GMT Oil pump common issue of made out plastic cause miss interpretation of oil pressure. Developing engine issues under 50k miles https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2134980 Mon, 29 Sep 2025 00:00:00 GMT Oil pump common issue of made out plastic cause miss interpretation of oil pressure. Developing engine issues under 50k miles https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2133243 Tue, 23 Sep 2025 00:00:00 GMT 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 p https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2133244 Tue, 23 Sep 2025 00:00:00 GMT 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 p https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2129695 Fri, 12 Sep 2025 00:00:00 GMT 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 https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2126553 Wed, 03 Sep 2025 00:00:00 GMT 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. https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2090158 Thu, 08 May 2025 00:00:00 GMT 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 deale https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2090159 Thu, 08 May 2025 00:00:00 GMT 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 deale https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2089133 Mon, 05 May 2025 00:00:00 GMT 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 a https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2085465 Wed, 23 Apr 2025 00:00:00 GMT 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 ve https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2083973 Fri, 18 Apr 2025 00:00:00 GMT 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 https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2079921 Thu, 03 Apr 2025 00:00:00 GMT 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. https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2074667 Mon, 17 Mar 2025 00:00:00 GMT 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, eventuall https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2073481 Thu, 13 Mar 2025 00:00:00 GMT Water pump failure and coolant reservoir leak. https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2070980 Tue, 04 Mar 2025 00:00:00 GMT 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 hi https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2048650 Mon, 16 Dec 2024 00:00:00 GMT 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 probl https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2048651 Mon, 16 Dec 2024 00:00:00 GMT 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 probl https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2046099 Fri, 06 Dec 2024 00:00:00 GMT 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 th https://plaincars.com/make/bmw-m340i https://plaincars.com/make/bmw-m340i#complaint-2027698 Thu, 26 Sep 2024 00:00:00 GMT Oil level won’t read. Can cause engine issues. Car has no dipstick to check for oil