Recalls (6)
NHTSA lists 6 recall campaigns for the 2021 BMW M340i. Check whether yours was repaired with NHTSA's free VIN lookup ↗
Only NHTSA and your automaker know whether your specific car was repaired. PlainVIN shows every recall campaign listed for a model year, with the official text and how many cars have been fixed so far.
Check on NHTSA ↗Listed for 2021 BMW M340i. Not checked against your VIN.
Seat Belt Audio Chime Malfunction/FMVSS 208
Electrical system · software
Official NHTSA text
- Summary
- BMW of North America, LLC (BMW) is recalling certain 2019-2022 330i, 330i xDrive, M340i, 2022 430i Coupe, 2021-2022 430i, M440i Convertible, and 2020-2022 228i xDrive Gran Coupe vehicles. The receiver audio module control unit software may fail to properly generate audible seat belt warnings to the driver to fasten their seat belt. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
- Consequence
- An audible chime that does not properly alert the driver to fasten their seat belt increases the risk of injury in a crash.
- Remedy
- Dealers will update the receiver audio module software, free of charge. Owner notification letters were mailed October 12, 2023. Owners may contact BMW customer service at 1-800-525-7417.
91% repairedof 144 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 23V584000
Listed for 2021 BMW M340i. Not checked against your VIN.
Front Seats Not Properly Welded
Seats
Official NHTSA text
- Summary
- BMW of North America, LLC (BMW) is recalling certain 2019-2021 330i, 330i xDrive, M340i xDrive, 2020-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, 2021 X3 xDrive30e, X4 xDrive30i, and X4M vehicles. The seat frame may not have been welded properly to the seat rails.
- Consequence
- An improperly welded seat frame may not properly restrain the occupant during a crash, increasing the risk of injury.
- Remedy
- Dealers will replace the seat frame and back rest, free of charge. Owner notification letters were mailed May 22, 2023. Owners may contact BMW customer service at 1-800-525-7417.
90.2% repairedof 51 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 23V211000
Listed for 2021 BMW M340i. Not checked against your VIN.
Passenger Seat Belt Malfunction/FMVSS 208
Seat belts
Official NHTSA text
- Summary
- BMW of North America, LLC (BMW) is recalling certain 2021 2 Series (230i, 230i xDrive, M240i, M240i xDrive), 330e, 330e Xdrive, 4 Series Coupe (430i, 430i xDrive, M440i xDrive) M4 Coupe, M4 Competition Coupe, BMW 4 Series Convertible (430i, M440i), BMW X1 sDrive28i, xDrive28i, 2 Series Gran Coupe (228i, 228i xDrive, M235i xDrive), M2 Competition Coupe, 330i, 330i xDrive, M340i, M340i xDrive, M3, M3 Competition, 530i, 530i xDrive, 540i, 540i xDrive, MINI Hardtop 2 Door (Cooper, CooperS, JCW), X2 sDrive28i, X2 xDrive28i, X2 M35i, Z4 sDrive30i, Z4 M40i, MINI Hardtop 2 Door (Cooper SE), MINI Convertible (Cooper, Cooper S, JCW), MINI Clubman (Cooper S, Cooper S All4, JCW), MINI Countryman (Cooper, Cooper All4, Cooper S, Cooper S All4, JCW All4), Rolls Royce Ghost, MINI Countryman (Cooper S E All4), Rolls Royce Phantom, Rolls Royce Cullinan, and Toyota Supra vehicles. The passenger seat belt Automatic Locking Retractor (ALR) may deactivate early, before the webbing fully retracts. As such, these assemblies fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
- Consequence
- During a crash, a seat belt retractor that does not function as intended increases the risk of injury.
- Remedy
- Dealers will inspect the seat belt retractors (including the seat belts) and, if necessary, replace the retractors, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact BMW customer service at 1-800-525-7417; 1-866-825-1525 (MINI); 1-877-877-3735 (Rolls Royce); and 1-888-270-9371 (Toyota).
98.8% repairedof 21,537 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 21V554000
Listed for 2021 BMW M340i. Not checked against your VIN.
Front Seat Belt Buckle Assembly Malfunction
Seat belts · front · buckle assembly
Official NHTSA text
- Summary
- BMW of North America, LLC (BMW) is recalling certain 2021 330i, 330i xDrive, M340i, M3, and 330e xDrive vehicles. The bolt securing the seat belt assembly to the frame was not tightened to specification.
- Consequence
- An improperly installed seat belt assembly may not restrain an occupant as expected, increasing the risk of injury.
- Remedy
- BMW will notify owners, and dealers will inspect the front seat belt buckle assembly connection and, if necessary, replace it, free of charge. Owner notification letters were mailed on June 25, 2021. Owners may contact BMW customer service at 1-800-525-7417.
100% repairedof 12 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 21V298000
Listed for 2021 BMW M340i. Not checked against your VIN.
Rearview Camera Image Malfunction/FMVSS 111
Back over prevention · sensing system · camera
Official NHTSA text
- Summary
- BMW of North America, LLC (BMW) is recalling certain 2019-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, X4 xDrive30i, X4 M40i, M550i, X4M, X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5M, X5 M50i, X7 xDrive40i, X7 xDrive50i, X7 M50i, Alpina XB7, 330i, 330i xDrive, M340i, M340i xDrive, and 8 Series Coupe, Convertible and Grand Coupe, 840i, 840i xDrive, M850i xDrive, M8, 2020-2021 530e, 530e xDrive, 330e, 330e xDrive, 745Le, 745Le xDrive, X5 xDrive45e, X3 xDrive30e, X6 sDrive40i, X6 xDrive40i, X6 xDrive50i, X6 M50i, X6M, 530i, 530i xDrive, 540i, 540i xDrive, M550i xDrive, M5, 740i, 740Li, 740Li xDrive, M760i Drive, M760Li xDrive, 750Li xDrive Alpina, Alpina B7 xDrive, and 2021 4 Series Coupe 430i, 430i xDrive, M440i xDrive vehicles. When shifting into Reverse, a small portion of the rearview image may be obscured, or the screen may not illuminate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
- Consequence
- If the driver relies on only the rearview camera image, the missing or reduced rearview image view can increase the risk of a crash or injury.
- Remedy
- BMW will notify owners, and dealers will inspect the rearview camera software and update it if necessary, free of charge. The recall began April 16, 2021. Owners may contact BMW customer service at 1-800-525-7417.
97.6% repairedof 13,858 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 21V096000
Listed for 2021 BMW M340i. Not checked against your VIN.
48V Battery Connection Misassembled
Electrical system · 12v/24v/48v battery
Official NHTSA text
- Summary
- BMW of North America, LLC (BMW) is recalling certain 2021 M340i xDrive, M440i xDrive Coupe, 530i, 530i xDrive, 540i, 540i xDrive, 740Li, 740Li xDrive, 840i Gran Coupe, 840i xDrive Gran Coupe, X5 sDrive40i, X5 xDrive40i, X6 sDrive40i, X6 xDrive40i, and X7 xDrive40i vehicles. The connection between the 48-Volt battery and the starter-generator may not have been assembled properly, which can cause increased electrical resistance at the connections.
- Consequence
- Increased electrical resistance can increase the risk of a fire.
- Remedy
- BMW will notify owners, and dealers will inspect the connection between the 48-Volt battery and the starter-generator assembly, replacing it if necessary, free of charge. The recall is expected to begin April 12, 2021. Owners may contact BMW customer service at 1-800-525-7417.
99.8% repairedof 812 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 20V761000
PlainVIN shows public government records for education. It isn't a vehicle inspection or legal advice. Check your own VIN with NHTSA or your dealer.
Owner complaints (11)
11 complaints filed with NHTSA (owner reports, not verified findings). The engine is mentioned most often.
0involved a crash
0involved a fire
0injuries reported
0deaths reported
As reported by owners in their complaints. These are reports, not NHTSA findings.
Most-reported components
| Component | Complaints | % of 11 |
|---|---|---|
| Engine | 7 | 63.6% |
| Power train | 3 | 27.3% |
| Electrical system | 2 | 18.2% |
| Fuel/propulsion system | 1 | 9.1% |
| Service brakes | 1 | 9.1% |
| Steering | 1 | 9.1% |
| Suspension | 1 | 9.1% |
How 2021 compares with other M340i years
Best and worst M340i years →| Model year | Complaints | Recall campaigns |
|---|---|---|
| 2020 | 53 | 10 |
| 2021 | 11 | 6 |
| 2022 | 7 | 1 |
This year (2021)Other yearsStill collecting reports
Counts are owner reports, not failure rates. Higher sales years tend to draw more reports. Owners are still filing reports for recent model years, so these counts will grow. Source: NHTSA ODI, retrieved Oct 6, 2026.
Fuel economy: up to 26 mpg combined
26
mpg combined
23
city
32
highway
- EPA annual fuel cost
- $3,150
- CO₂ tailpipe
- 333 g/mi
- EPA class
- Compact Cars
What it costs you to run
$2,512per year
$209per month
577gallons a year
Miles ÷ 26 mpg × $4.354 (EIA US average regular, week of Oct 5, 2026, all taxes included). Source: EPA · EIA.
EPA label estimates from lab tests; your mileage will vary.
Specs by configuration
| Engine · transmission | Drive | City / Hwy / Comb | EPA $/yr | CO₂ g/mi |
|---|---|---|---|---|
| 3 L 6-cyl · 8-speed automatic | Rear-Wheel Drive | 23 / 32 / 26 | $3,150 | 333 |
Source: EPA fuel economy data, retrieved Oct 6, 2026. Configurations are listed when EPA and NHTSA records match.
Looking at a 2021 M340i for sale?
Print a one-page buyer's checklist: each recall campaign with a box to tick when the seller shows proof of repair, the top complaint areas to inspect, crash stars, MPG, and a link back to this page.
Where to next
2021 BMW M340i FAQ
How many recalls does the 2021 BMW M340i have?
NHTSA lists 6 recall campaigns: 23V584000 (seat belt), 23V211000 (seat), 21V554000 (seat belt), 21V298000 (seat belt), 21V096000 (rear camera), 20V761000 (electrical). Use NHTSA's VIN lookup to see whether a specific car was repaired.
What are the most common 2021 BMW M340i problems?
Owners filed 11 complaints with NHTSA. Engine (7), Power train (3), Electrical system (2) are mentioned most. These are owner reports, not verified findings.
What mpg does the 2021 BMW M340i get?
EPA rates the 3 L 6-cyl · 8-speed automatic version at 23 city, 32 highway and 26 combined mpg.
How this page was madeSources, processing, limits, review and changes
Data sources
- NHTSA recalls by vehicle
Retrieved Oct 6, 2026 - US DOT recall completion rates (data.transportation.gov)
Retrieved Oct 6, 2026 - NHTSA ODI owner complaints
Retrieved Oct 6, 2026 - NHTSA NCAP 5-Star Safety Ratings
Retrieved Oct 6, 2026 - EPA fuel economy data (licence confirmation pending)
Retrieved Oct 6, 2026 - EIA weekly retail gasoline prices
Weekly, all taxes included
Processing
- Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
- Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.
Limitations
- Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
- Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
- Recent model years are still collecting reports.
Review
Data compiled automatically from the official files listed here.
Changelog
- 2026-10-06 Data refreshed from the official files.
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