Before buying a used 2023 BMW 840i, check whether recall repairs were completed, how it scored in crash tests and what owners report most often. Ask the seller for service records covering any recall listed below.
A 0–100 grade from public NHTSA data — higher means fewer reported problems. How it's calculated
No owner complaints have been filed with NHTSA for this model year.
Source: NHTSA owner complaints. Complaints are unverified reports, not confirmed defects.
| Version | City | Highway | Combined |
|---|---|---|---|
| 840i Convertible — Auto (S8), 6 cyl, 3.0 L, Turbo | 11.2 L/100 km (21 mpg) | 8.1 L/100 km (29 mpg) | 9.8 L/100 km (24 mpg) |
| 840i Coupe — Auto (S8), 6 cyl, 3.0 L, Turbo | 11.2 L/100 km (21 mpg) | 8.1 L/100 km (29 mpg) | 9.8 L/100 km (24 mpg) |
| 840i Gran Coupe — Auto (S8), 6 cyl, 3.0 L, Turbo | 11.2 L/100 km (21 mpg) | 8.1 L/100 km (29 mpg) | 9.8 L/100 km (24 mpg) |
| 840i xDrive Convertible — Auto (S8), 6 cyl, 3.0 L, Turbo | 11.2 L/100 km (21 mpg) | 8.1 L/100 km (29 mpg) | 9.8 L/100 km (24 mpg) |
Source: U.S. EPA / fueleconomy.gov. Converted to L/100 km for Canadian buyers.
BMW of North Americal, LLC (BMW) is recalling certain 2023 8 Series Coupe (840i, 840i xDrive, M850i xDrive, M8), 8 Series Convertible (840i, 840i xDrive, M850i xDrive, M8), 8 Series Gran Coupe (840i, 840i xDrive, M850i xDrive, M8, Alpine B8 xDrive), 2 Series Coupe (230i, 230i xDrive, M240i xDrive, M2), and 2022-2023 Z4 sDrive30i, Z4 M40i vehicles. When the digital key is removed from the vehicle, the Electronic Control Unit (ECU) software may still allow the power windows and sunroof to be closed. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety…
Remedy: Dealers will update the software for the Electronic Control Unit (ECU), free of charge. In addition, the digital key function via cellular service and Wi-Fi capability will be deactivated until the vehicle is updated with new software. Owner notification letters are expected to be mailed April 11, 2023. Owners may contact BMW customer service at 1-800-525-7417.
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.
Remedy: 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…
BMW of North America, LLC (BMW) is recalling certain 2022-2026 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.
Remedy: 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 are expected to be mailed October 2, 2026. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall will become…
Source: U.S. NHTSA. Canadian-market vehicles can have different recalls — check Transport Canada's recall database. Always confirm recall status for a specific VIN with a dealer.
NHTSA hasn't published 5-star ratings for this model year.
Source: NHTSA New Car Assessment Program.
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