Independent · Not affiliated with NHTSA or any automaker MethodologyData sourcesData refreshed Oct 6, 2026

2020 BMW M340i: Problems, Recalls and MPG

What this means

NHTSA lists 10 recall campaigns for the 2020 BMW M340i, most recently filed August 2024. Owners have filed 53 complaints with NHTSA, most often about the engine.

Data summary generated from official records. Methodology Data: NHTSA, DOT, EPA · Refreshed Oct 6, 2026
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Recalls (10)

NHTSA lists 10 recall campaigns for the 2020 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 2020 BMW M340i. Not checked against your VIN.
Recall 24V576000 Filed Aug 1, 2024

Starter Motor May Fail and Overheat

Electrical system · starter assembly
Official NHTSA text
Summary
BMW of North America, LLC is recalling certain 2019-2020 X5, X7, 2020 3 Series Sedan, X6, 2020-2021 7 Series Sedan, 2020 8 Series Convertible, 8 Series Coupe, and 2020 8 Series Gran Coupe vehicles. Please see the recall report for the complete list of models. In the event the starter motor fails, repeated attempts to start the vehicle can cause the starter motor to overheat from an electrical overload.
Consequence
A starter motor that overheats can ignite nearby combustible material in the engine compartment, increasing the risk of a fire.
Remedy
Dealers will update the vehicle software, free of charge. Owner notification letters were mailed September 27, 2024. Owners may contact BMW customer service at 1-800-525-7417.
87.2% repairedof 105,588 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 24V576000
Listed for 2020 BMW M340i. Not checked against your VIN.
Recall 23V584000 Filed Aug 16, 2023

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 2020 BMW M340i. Not checked against your VIN.
Recall 23V211000 Filed Mar 29, 2023

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 2020 BMW M340i. Not checked against your VIN.
Recall 21V598000 Filed Aug 2, 2021

Loss of Braking Assist

Engine
Official NHTSA text
Summary
BMW of North America, LLC (BMW) is recalling certain 2020 M340i, M340i xDrive, 540i, 540i xDrive, X3 M40i, 2020-2021 X4 M40i, 745Le xDrive, 2019-2021 Z4 M40i, and 2020-2021 Toyota Supra vehicles. During engine start, the engine management software may cause loss of braking assist. Full mechanical braking (without assist) remains available.
Consequence
Loss of braking assist can increase the risk of a crash.
Remedy
Dealers will update the engine management software, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact BMW customer service at 1-800-525-7417.
95.9% repairedof 50,024 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 21V598000
Listed for 2020 BMW M340i. Not checked against your VIN.
Recall 21V096000 Filed Feb 19, 2021

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 2020 BMW M340i. Not checked against your VIN.
Recall 20V355000 Filed Jun 15, 2020

Steering Gear Tie Rods May Become Damaged

Steering · linkages · tie rod assembly
Official NHTSA text
Summary
BMW of North America, LLC (BMW) is recalling certain 2019 Z4 sDrive30i, 2019-2020 330i xDrive, M340i and M340i xDrive, 2020 X3M and X4M, and Toyota Supra vehicles. In certain driving conditions, such as high temperatures and rough road surfaces, a steering gear tie rod may become damaged, possibly resulting in a fractured tie rod.
Consequence
A damaged or fractured tie rod may affect vehicle handling and control, increasing the risk of a crash.
Remedy
BMW and Toyota will notify owners, and dealers will replace the steering gear tie rods, free of charge. The recall began August 14, 2020. Owners may contact BMW customer service at 1-800-525-7417 or Toyota customer service at 1-888-270-9371.
99.3% repairedof 2,779 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 20V355000
Listed for 2020 BMW M340i. Not checked against your VIN.
Recall 20V164000 Filed Mar 19, 2020

Seat Belt Sensors May Not Detect Belted Condition

Air bags
Official NHTSA text
Summary
BMW of North America, LLC (BMW) is recalling certain 2020 X3 xDrive30e, X4 xDrive30i, X4 M40i, X4M, 330i, 330i xDrive, M340i, 840i Gran Coupe, 840i xDrive Gran Coupe, M850i xDrive Gran Coupe, M8 Gran Coupe, X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, and 840i xDrive Convertible vehicles. The sensors in the front seat belt buckles may inaccurately detect a belted occupant as unbelted, possibly causing the air bag and seat belt pretensioners to deploy improperly in the event of a crash.
Consequence
If the air bag and/or seat belt pretensioners deploy improperly in the event of a crash, there is an increased risk of injury to the driver and front passenger.
Remedy
BMW will notify owners, and dealers will inspect and replace the front seat belt buckles, as necessary, free of charge. The recall began May 18, 2020. Owners may contact BMW customer service at 1-800-525-7417.
99.9% repairedof 3,316 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 20V164000
Listed for 2020 BMW M340i. Not checked against your VIN.
Recall 19V755000 Filed Oct 23, 2019

Improperly Installed Interior Trunk Release Cable

Structure · body · trunk lid
Official NHTSA text
Summary
BMW of North America, LLC (BMW) is recalling certain 2020 330i, 330i xDrive and M340i vehicles. The interior trunk release cable may have been improperly installed, preventing the opening of the trunk from the inside. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 401, "Internal Trunk Release."
Consequence
If a person were inside the trunk compartment, they may not be able to get out, increasing their risk of injury.
Remedy
BMW will notify owners, and dealers will inspect the interior trunk release cable and properly install the cable, as necessary, free of charge. The recall began December 13, 2019. Owners may contact BMW customer service at 1-800-525-7417.
99.4% repairedof 325 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 19V755000
Listed for 2020 BMW M340i. Not checked against your VIN.
Recall 19V684000 Filed Sep 27, 2019

No Back-Up Camera Display Image/FMVSS 111

Back over prevention · sensing system · camera
Official NHTSA text
Summary
BMW of North America, LLC (BMW) is recalling certain 2018 540d, 2018-2020 530i, 530i xDrive, 540i, 540i xDrive, M550i xDrive, M5, 530e, 530e xDrive, X3 sDrive, X3 xDrive, X3 M40i, X3 M, and 2019-2020 X4 xDrive, X4 M40i, X4 M, X7 xDrive, X7 M50i, 740Li, 740Li xDrive, 750Li, 750Li xDrive, 8 Series Convertible and Coupe 840i, 840i xDrive, M850i xDrive, X5 sDrive, X5 xDrive, X5 M50i, X6 xDrive, X6 M50i, 330i, 330i xDrive, M340i, M340i xDrive, Z4 sDrive, Z4 M40i, 740Le xDrive and 745Le xDrive, 2018-2019 640i xDrive Gran Turismo and Rolls-Royce Phantom, 2019 M850i xDrive Gran Coupe and Rolls-Royce Cullinan and 2020 Toyota Supra vehicles. The back-up camera and display settings can be adjusted such that the rear view image is no longer visible and the system will retain that setting the next time the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rearview Mirrors."
Consequence
The lack of an image in the back-up camera display increases the risk of a crash.
Remedy
BMW will notify owners, and dealers will update the back-up camera software, free of charge. The recall began November 8, 2019. Owners may contact BMW customer service at 1-800-525-7417 or Rolls-Royce at 1-877-877-3735. Toyota owners may contact Toyota customer service at 1-888-270-9371.
96.6% repairedof 257,473 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 19V684000
Listed for 2020 BMW M340i. Not checked against your VIN.
Recall 19V600000 Filed Aug 14, 2019

Rear Center Headrest may Fold in a Crash

Seats
Official NHTSA text
Summary
BMW of North America, LLC (BMW) is recalling one 2020 M340i and one M340i xDrive vehicle. Due to improper welding, the rear center headrest may fold in the event of a rear impact crash.
Consequence
If the headrest folds down in a crash, there would be an increased risk of injury.
Remedy
BMW will notify owners, and dealers will replace the rear center headrest, free of charge. The recall began August 28, 2019. Owners may contact BMW customer service at 1-800-525-7417.
100% repairedof 2 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 19V600000

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Owner complaints (53)

53 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

Complaints filed with NHTSA for the 2020 BMW M340i, by component (top 9). One complaint can list several components, so these add up to more than 53.Source: NHTSA ODI owner complaints · Retrieved Oct 6, 2026 · Report a data error

How 2020 compares with other M340i years

Best and worst M340i years →
53 11 7
202020212022
This year (2020)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 25 mpg combined

25
mpg combined
22
city
30
highway
EPA annual fuel cost
$3,300
CO₂ tailpipe
353 g/mi
EPA class
Compact Cars

What it costs you to run

$2,612per year
$218per month
600gallons a year

Miles ÷ 25 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

2020 BMW M340i configurations with EPA data
Engine · transmissionDriveCity / Hwy / CombEPA $/yrCO₂ g/mi
3 L 6-cyl · 8-speed automaticRear-Wheel Drive22 / 30 / 25$3,300353

Source: EPA fuel economy data, retrieved Oct 6, 2026. Configurations are listed when EPA and NHTSA records match.

Used blue SUV on a sunny dealer lot with its hood open and a clipboard on the fender

Looking at a 2020 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.

All M340i years

Where to next

2020 BMW M340i FAQ

How many recalls does the 2020 BMW M340i have?

NHTSA lists 10 recall campaigns: 24V576000 (engine), 23V584000 (seat belt), 23V211000 (seat), 21V598000 (engine), 21V096000 (rear camera), 20V355000 (steering), 20V164000 (air bag), 19V755000 (structure), 19V684000 (rear camera), 19V600000 (seat). Use NHTSA's VIN lookup to see whether a specific car was repaired.

What are the most common 2020 BMW M340i problems?

Owners filed 53 complaints with NHTSA. Engine (38), Unknown or other (9), Electrical system (6) are mentioned most. These are owner reports, not verified findings.

What mpg does the 2020 BMW M340i get?

EPA rates the 3 L 6-cyl · 8-speed automatic version at 22 city, 30 highway and 25 combined mpg.

How this page was madeSources, processing, limits, review and changes

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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