2021 Bmw M340i problems
The seventh generation of the BMW 3 Series range consists of the BMW G20 (sedan version) and BMW G21 (wagon version, marketed as 'Touring') compact executive cars. The G20/G21 has been in production since mid-October 2018 with a facelift in July 2022 and is often collectively referred to as the G20.
The M340i, one of the first models in the range, became available for sale in the spring of 2019, with the 330e plug-in hybrid model scheduled for launch in 2020. The 3 Series Gran Turismo fastback body style was discontinued for the G20 generation.
For the G20 generation, BMW has begun production in Mexico for various world markets including the US, replacing the Rosslyn plant in South Africa where the previous F30 generation vehicles were assembled.
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Common 2021 Bmw M340i problems
The BMW M340i, introduced in 2021, has been a popular choice among car enthusiasts. However, like any vehicle, it is not without its common problems. Here are some of the issues reported by owners:
- Recall for Rearview Camera Software: In 2021, BMW issued a recall for certain M340i models due to a potential issue with the rearview camera software. When shifting into Reverse, a small portion of the rearview image may be obscured, or the screen may not illuminate, failing to comply with Federal Motor Vehicle Safety Standard (FMVSS) number 111, “Rear Visibility”. BMW will notify owners, and dealers will inspect and update the rearview camera software if necessary, free of charge.
- Issues with 48-Volt Battery Connection: BMW also issued a recall for certain 2021 M340i models due to a potential issue with the connection between the 48-Volt battery and the starter-generator. The connection may not have been assembled properly, causing increased electrical resistance at the connections, which can lead to various electrical issues. BMW will inspect and replace the connection between the 48-Volt battery and the starter-generator assembly if necessary, free of charge.
- Seat Belt Automatic Locking Retractor (ALR) Issue: In 2021, BMW of North America, LLC (BMW) recalled certain vehicles, including the M340i, due to a potential issue with the passenger seat belt Automatic Locking Retractor (ALR). The ALR may deactivate early, before the webbing fully retracts, failing to comply with Federal Motor Vehicle Safety Standard number 208, “Occupant Crash Protection”. Dealers will inspect the seat belt retractors and, if necessary, replace the retractors, free of charge.
- Squeaking/Creaking Sunroof: Some owners have reported a squeaking or creaking sunroof, which can be an annoyance during daily driving. This issue may require a visit to a local independent garage for adjustments.
- Apple CarPlay and WhatsApp Issues: Some owners have reported issues with Apple CarPlay maps and WhatsApp, with most of the map displays showing small grid lines with no map detail and WhatsApp not showing messages. This issue may require a software update or a visit to a BMW dealership for troubleshooting.
- Hollow and Boomy Harman Kardon Surround Sound: Some owners have reported that the Harman Kardon Surround Sound in the M340i is much more hollow and boomy sounding than in previous BMW models. This issue may require a visit to a BMW dealership for troubleshooting or adjustments.
- Transmission Recalibration: Some owners have reported that the sport program for the transmission has been recalibrated, causing the car to hang onto gears and produce silly mock heel and toe manual gearbox downchange sounds. This issue may require a software update or a visit to a BMW dealership for troubleshooting.
- Misaligned Steering Wheel: Some owners have reported a misaligned steering wheel, which may require adjustments by a local independent garage or BMW dealership.
- Cerium Grey Paint Color Discrepancy: Some owners have reported that the Cerium Grey paint color on the mirror housings and wheels appears to be two different colors, which can be an aesthetic issue.
While these issues may not affect all M340i models, they are common complaints from owners. It is essential to be aware of these potential problems and address them promptly to ensure the longevity and reliability of the vehicle.
Is the 2021 BMW M340i reliable?
My first BMW I have owned. I went with the M340i because I was looking for a car that could do it all. Something that is reliable, practical, easy to drive when commuting, but could also have a little fun when pushed. Not to mention I think the G20 looks stunning.
What is the recall on the 2021 BMW m340?
4 Recalls for 2021 BMW M340i
| Recall Date | Component |
|---|---|
| 2021-07-21 | SEAT BELTS |
| 2021-04-28 | SEAT BELTS:FRONT:BUCKLE ASSEMBLY |
| 2021-02-19 | BACK OVER PREVENTION: SENSING SYSTEM: CAMERA | BACK OVER PREVENTION:SOFTWARE |
| 2020-12-09 | ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
Is M340i a good daily driver?
The luxury elements of the BMW M340i stand out, but so does the performance. The six-cylinder engine comes with an innovative mild-hybrid system that allows you to accelerate quickly while remaining efficient on the road. This makes it the ultimate daily driver for gearheads around the world.
How much does it cost to maintain a BMW M340i?
2020 3 Series Sedan M340i 4dr Sedan (3.0L 6cyl Turbo 8A)
| Year 1 | Year 3 | |
|---|---|---|
| Maintenance | $3,181 | $1,575 |
| Repairs | $1,650 | $1,914 |
| Taxes & Fees | $3,398 | $238 |
| Financing | $2,601 | $1,570 |
Is the 2021 BMW M340i reliable?
My first BMW I have owned. I went with the M340i because I was looking for a car that could do it all. Something that is reliable, practical, easy to drive when commuting, but could also have a little fun when pushed. Not to mention I think the G20 looks stunning.
What is the recall on the 2021 BMW m340?
4 Recalls for 2021 BMW M340i
| Recall Date | Component |
|---|---|
| 2021-07-21 | SEAT BELTS |
| 2021-04-28 | SEAT BELTS:FRONT:BUCKLE ASSEMBLY |
| 2021-02-19 | BACK OVER PREVENTION: SENSING SYSTEM: CAMERA | BACK OVER PREVENTION:SOFTWARE |
| 2020-12-09 | ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
Is the BMW M340i safe?
BMW M340i has been awarded 5-star safety rating. 5-star rating is considered the best whereas 1-star rating is considered the worst.
Is M340i a good daily driver?
The luxury elements of the BMW M340i stand out, but so does the performance. The six-cylinder engine comes with an innovative mild-hybrid system that allows you to accelerate quickly while remaining efficient on the road. This makes it the ultimate daily driver for gearheads around the world.
2021 Bmw M340i car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Bmw M340i problems, we found that the most common problems with these 2023 model year vehicles are:
- Engine problems
- Power train problems
- Service brakes problems
The graph below shows statistics for all 2021 Bmw M340i vehicle components and the number of complaints received.
2021 Bmw M340i complaints
The NHTSA has received 3 complaints about various vehicle components related to the 2021 Bmw M340i.
ENGINE PROBLEM
- Date Of Incident: 2023-10-02
- VIN: 3MW5U7J06M8
- Components: ENGINE
- Summary: At approximately 20,000 miles, vehicle indicated excessively low oil. The dealer indicated oil level was excessively low but did not identify the problem,. The vehicle was filled and returned to owner. Within 1000 miles, the incident occurred again. Dealer replaced replaced the valve cover claiming that was the issue. Now within +/- 1000 miles, the oil level is again excessively low. I happen to have another identical BMW of the same year and same mileage having exactly the same problem (filing separate complaint).
ENGINE PROBLEM
- Date Of Incident: 2023-10-01
- VIN: 3MW5U7J09M8
- Components: ENGINE
- Summary: At approximately 20,000 miles, vehicle indicated excessively low oil. The dealer indicated oil level was excessively low but did not identify the problem,. The vehicle was filled and returned to owner. Within 1000 miles, the incident occurred again. Dealer replaced replaced the valve cover claiming that was the issue. Now within +/- 1000 miles, the oil level is again excessively low. I happen to have another identical BMW of the same year and same mileage having exactly the same problem (filing separate complaint).
POWER TRAIN,SERVICE BRAKES PROBLEM
- Date Of Incident: 2021-03-01
- VIN: 3MW5U9J09M8
- Components: POWER TRAIN,SERVICE BRAKES
- Summary: The contact owns a 2021 BMW M340I. The contact stated while driving various speeds, the vehicle independently shifted from reverse(R) to drive(D) to park(P). The contact stated that while driving approximately 10 MPH and attempting to stop the vehicle, the brake pedal was depressed and went to the floorboard. The contact stated that the brake failed to operate as designed. The vehicle was towed to a dealer who diagnosed that the vacuum pump needed to be replaced. The vehicle was repaired. The contact stated that an unknown transmission repair was performed. The manufacturer was made aware of the failure. The approximate failure mileage was 4,000.
2021 Bmw M340i recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 6 recalls for different components of the 2021 Bmw M340i.
- Manufacturer: BMW of North America, LLC
- Components: SEAT BELTS
- 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.
- Manufacturer: BMW of North America, LLC
- Components: SEATS
- 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.
- Manufacturer: BMW of North America, LLC
- Components: SEAT BELTS
- 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).
- Manufacturer: BMW of North America, LLC
- Components: SEAT BELTS:FRONT:BUCKLE ASSEMBLY
- 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.
- Manufacturer: BMW of North America, LLC
- Components: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
- 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.
- Manufacturer: BMW of North America, LLC
- Components: ELECTRICAL SYSTEM:12V/24V/48V BATTERY
- 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.
Additional sources
More sources of information about 2021 Bmw M340i problems:
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