2024 Bmw 840i problems, complaints & recalls
Most-reported problem areas: Wheels (1) · Power Train (1)
Safety recalls (2)
Power Train:driveline:driveshaft 2026-08-12 · campaign 26V525000 · 36,823 vehicles
Defect: BMW of North America, LLC (BMW) is recalling certain 2020-2026 840i, 840i xDrive, 2021-2023 540i, 540i xDrive, M550i xDrive, and 2024-2026 750e xDrive vehicles. The connection between the driveshaft and the rear differential may become damaged, possibly resulting in a loss of power to the rear wheels or a vehicle rollaway.
Risk: An unexpected loss of drive power can increase the risk of a crash. In addition, a damaged driveshaft can result in a vehicle rollaway if the parking brake is not applied, increasing the risk of a crash or injury.
Fix: Dealers will inspect the connection between the driveshaft and rear axle differential, and apply adhesive or replace the driveshaft and rear axle differential, as necessary, free of charge. Owner notification letters were mailed October 8, 2026. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning October 2, 2026.
Electrical System:starter Assembly 2025-09-25 · campaign 25V644000 · 145,102 vehicles
Defect: BMW of North America, LLC (BMW) is recalling certain 2020 340I, X6, 2020-2025 840I, 2020-2022 740LI, 2019-2020 X7, and X5 vehicles. After repeated attempts, the starter motor may overheat from an electrical overload.
Risk: An overheated starter motor can ignite nearby combustible material in the engine compartment, increasing the risk of a fire.
Fix: Dealers will replace the engine starter, free of charge. This recall includes vehicles repaired under recall 24V576 and those owners will need to have their vehicle repaired again. Owner notification letters were mailed February 9, 2026. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov November 17, 2025.
Service bulletins (20)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-08-06 · B064126 · Other
fan return
Engine 2026-05-06 · B010126 · Warranty Program/Extension
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.
Seats 2025-08-21 · B521125 · Service Bulletin/Repair Instructions
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 t
Structure:body 2025-02-03 · B514616 · Service Bulletin/Repair Instructions
upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.
Seats 2025-01-22 · B060425 · Other
fittings return
Suspension 2025-01-10 · B370125 · Service Campaign
delivery stop: suspension strut holder
Showing the 6 most recent of 20 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-07-03 · Wheels“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 whic…”
2026-03-23 · Power Train“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…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.