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NHTSA complaints · TSBs · investigations

BMW 840I problems & complaints

What BMW 840I owners have reported to NHTSA, the service bulletins the manufacturer sent dealers, and any federal defect investigations, by model year. See BMW 840I safety recalls or check your VIN.

Owner complaints
14
Service bulletins (TSBs)
176+
Crashes / fires reported
0 / 0
Defect investigations
1

Complaints by model year

Complaints owners filed with NHTSA, by the model year of the vehicle. A high count can also mean a popular year, so compare it with how many were sold.

  • 20251
  • 20242
  • 20227
  • 20204
YearComplaintsCrashesFiresInjuredDeathsTSBs
2025100105
20242000020
20230000016
20227000055
202100000125
202040000176
20190000012

Most reported problems

The vehicle systems named most often in BMW 840I complaints (one complaint can name several).

  • Electrical System7
  • Engine4
  • Power Train2
  • Unknown Or Other2
  • Wheels2
  • Forward Collision Avoidance1
  • Fuel/Propulsion System1
  • Service Brakes, Hydraulic1

Latest owner complaints

In the owners’ own words, as filed with NHTSA. Unverified reports; NHTSA removes personal details before publishing.

  • 2025 840iOct 22, 2026Forward Collision Avoidance1 injuredNHTSA #11772915
    The contact owns a 2025 BMW 840I. While driving approximately 40–50 MPH, the vehicle experienced phantom braking. The contact suffered shoulder and neck pain but had not sought medical attention. The failure had occurred twice. The manufacturer was notified of the failure by phone. The failure mileage was approximately 17,000.
  • 2022 840iJul 14, 2026Power TrainNHTSA #11750305
    Drive Shaft Failed a second time within a year. This time they are saying the Differential stripped it this time. Both incidents i was on highway and car completed stalled out of the randomly no warning or alerts both times on interstate. BMW just provided services to my car i had front brakes replaced, oil change and open recall of starter repaired. Everything checked out to be good along with drive shaft and differential. Now they need replaced per BMW.
  • 2024 840iJul 3, 2026Wheels, Unknown Or OtherNHTSA #11748237
    I leased this car Jan. 2 2025 and have now had multiple cracks on 3 out of 4 wheels on the car which has been repaired and now the right front wheel has been replaced with the tire and in the dealership again needing to replace the rear 2 wheels secondary to cracks with what BMW has told me that the front right tire needs to be replaced again which was recently replaced in april because of a cracked rim and the two rear wheels need to be replaced which I replaced the right rear wheel about 1 year ago. This is now 3 wheels and 3 tires that I have already replaced 2 tires and no impact event just normal commuting freeway driving to work and back home. In 1.5 years I had to now replace 3 wheel…
  • 2022 840iApr 14, 2026Electrical SystemNHTSA #11731178
    The contact owns a 2022 BMW 840I. The contact received notification of NHTSA Campaign Number: 25V644000 (Electrical System) in 2025. The contact had been working with the local dealer and was informed that parts were not available for the recall repair. The contact called the manufacturer and was informed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure.
  • 2024 840iMar 23, 2026Engine, Fuel/Propulsion System, Power TrainNHTSA #11726550
    While driving, the vehicle experienced a sudden catastrophic failure involving the engine and turbocharger, resulting in an immediate loss of power and the vehicle becoming disabled in an active roadway. The failure occurred without warning and required a response from the San Diego Police Department due to the vehicle being immobilized in traffic. This created a hazardous situation for the driver and surrounding vehicles. The vehicle had approximately 26,000 miles at the time of failure. The vehicle was later inspected by an authorized BMW dealership, which acknowledged the failure but attributed it to a non-OEM oil filter without providing any technical explanation or evidence showing ca…
  • 2022 840iJan 26, 2026Electrical SystemNHTSA #11713303
    In September 2025, BMW issued a recall # 25V644 for a safety related potential fire issue on the starter for my 2022 840i Gran Coupe. It has now been 4 months, and BMW is still telling me they do not have the assigned parts to resolve this issue. Furthermore, NHTSA has somehow dropped this recall off the records for the VIN of my car, which is troubling. My compliant is BMW is not timely in their efforts to correct a safety fire issue for my vehicle.
  • 2022 840iDec 4, 2025Electrical SystemNHTSA #11702940
    Customer filing a complaint against BMW for untimely resolution of Recall #25V644. This recall is a known Safety Risk which began in the summer of 2025. It is now December 4, 2025, and discussions today with BMW North America, they cannot provide me an ETA of when parts will be available for my vehicle. Further info from BMW North America says they will mail me a letter sometime? in 2026 to tell me when parts are available but if I have electrical heating/smoke issues before that to take the car to the BMW Dealer. BMW appears to be pretty nonchalant about this recall and can't provide timing to resolve the serious nature of a fire being the result of this recall's safety risk. Very disapp…
  • 2022 840iNov 20, 2025Electrical System, EngineNHTSA #11700556
    The contact owns a 2022 BMW 840I. The contact stated that while driving at 5 MPH, the vehicle stalled unexpectedly. There were no warning lights illuminated. The vehicle was blocking the garage. The contact received notification of NHTSA Campaign Number: 25V644000 (Electrical System). The local dealer was contacted regarding a loaner vehicle, but no assistance was provided. The vehicle was not diagnosed or repaired. The manufacturer was contacted and confirmed that the part for the recall repair was not yet available. There was no ETA for parts availability. The failure mileage was approximately 59,000.

Technical service bulletins (TSBs)

Repair instructions and other communications the manufacturer sent dealers about known issues. A TSB is not a recall, and the repair is usually free only while the car is under warranty; ask your dealer for the bulletin number.

  • B064126
    Aug 6, 2026OtherEngine

    Fan Return

  • B011524
    Jul 28, 2026Warranty Program/ExtensionEngine

    The NVLD modules limited warranty for defects in materials and/or workmanship has been extended to 15 years / 150,000 miles as determined from the vehicles original in-service / first delivery date.

  • B110426
    Jul 17, 2026Service Bulletin/Repair InstructionsEngine, Electrical System

    The manual starting of electronic engine oil level measurement from inside the vehicle, usually afterperforming an engine oil service task, is inoperative or it may lock up at between a 15% to 30% completionrate.

  • B840226
    Jul 10, 2026Service CampaignElectrical System

    Once the Telematics Module (TCB2) enters sleep mode, a BMW Data Services trigger for Remote Services(remote engine start, lock/unlock/climate conditioning) will not be able to reactivate the TCB2. Due to this issue, Remote Services will not function in the vehicle when parked and locked.

  • B010126
    May 6, 2026Warranty Program/ExtensionEngine

    The EVAP systems purge (vent) valve limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in-service / delivery date.

  • B650426
    Mar 16, 2026Service Bulletin/Repair InstructionsUnknown Or Other

    Customers may report issues with the alarm system not functioning correctly. These concerns may includeone or more of the following: Missing confirmation sound (function cannot be selected or deselected in the Central InformationDisplay (CID) menu). Alarm system deactivated (interior mirror light off). Alarm does not function. DWA LED without function after locking (no flashing/flashing). Acoustic acknowledgement is unavailable or cannot be enabled/disabled via the CID menu underdoors/windows. Tilt alarm sensor “SINE” cannot be reached via diagnostics.

  • B521125
    Aug 21, 2025Service Bulletin/Repair InstructionsElectrical System, Seats

    If the seat ventilation is deactivated via the switch or due to parking the vehicle, the fans in the seat cushionor under the seat cushion surface are unpleasantly loud. The fans speed up loudly twice and then turn off. The functionality of the fans is not impaired. This behavior only occurs after the vehicle had been programmed to I level S18A- 25-07-520 and higher; upto, but not including S18A- 25-07-551.

  • B270220
    Jun 6, 2025Service Bulletin/Repair InstructionsPower Train

    There is a jerking or shuddering during either or both of the following: Cornering or accelerating from low speeds Driving with low to medium loads

  • B270220
    Mar 27, 2025Service Bulletin/Repair InstructionsPower Train, Wheels

    There is a jerking or shuddering during either or both of the following: Cornering or accelerating from low speeds Driving with low to medium loads There are no warning lights or Check Control messages.

  • B520525
    Feb 28, 2025Service Bulletin/Repair InstructionsElectrical System

    The customer states: The driver’s seat will not return to its last saved position. No seat memory. The heated seats settings in the menu are missing/different than in their previous BMW vehicle. They canno longer select, under the climate rules, at what temperature Fahrenheit the heated seats willautomatically turn on. Certain other “apps” and functions are not available The driver’s seat moves to an unknown memory position

  • B514616
    Feb 3, 2025Service Bulletin/Repair InstructionsStructure

    Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.

  • B060425
    Jan 22, 2025OtherSeats

    FITTINGS RETURN

Federal defect investigations

NHTSA’s Office of Defects Investigation opens these when complaints point to a possible safety defect. Many end in a recall.

  • Driveshaft to rear differential connection failure
    DP26009Opened Sep 14, 2026Closed Oct 26, 2026

    The Office of Defects Investigation (ODI) received a petition on September 1, 2026 (dated August 5, 2026), requesting an investigation into an alleged defect in BMW rear differential assemblies. The petitioner alleges Model Year (MY) 2022 BMW 540i vehicles are experiencing a sudden mechanical failure that severs the drive connection between the driveshaft and the rear wheels. On August 12, 2026, BMW filed Safety Recall 26V525, which addresses the same condition raised in the petition. and covers

Source: NHTSA Office of Defects Investigation public data (complaints, manufacturer communications, investigations), model years 2010 and later. Had a safety problem? Report it to NHTSA.

Questions

What are the most common BMW 840I problems?

In complaints filed with NHTSA for model years 2019–2025, owners most often name: electrical system, engine, power train. 14 complaints are on record.

Is a complaint or a TSB the same as a recall?

No. A complaint is an unverified report from an owner. A technical service bulletin (TSB) is the manufacturer telling dealers how to fix a known issue; it is not a safety recall and is usually covered only under warranty. A recall is a formal safety action, and its repair is free.

How do I report a problem with my BMW 840I?

File a vehicle safety complaint at NHTSA.gov. NHTSA reads every report, and patterns of complaints are what open defect investigations and, eventually, recalls.