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BMW M340I problems

Owners have filed 88 complaints about the BMW M340I with NHTSA across model years 2020 to 2022. More of them are about the engine & cooling than anything else.

Every BMW M340I year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded
Year Grade Complaints Crashes Fires Median miles Most reported
2022 — 8 0 0 — Engine & Cooling
2021 — 16 0 0 — Engine & Cooling
2020 — 64 0 0 28,162 Engine & Cooling

What breaks on a BMW M340I

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Engine & Cooling 48 54.5%

Worst in 2020

Other & Unspecified 10 11.4%

Worst in 2020

Electrical System 9 10.2%

Worst in 2020

Transmission & Drivetrain 6 6.8%

Worst in 2021

Fuel & Propulsion 4 4.5%

Worst in 2020

Brakes 3 3.4%

Worst in 2020

Steering 2 2.3%

Worst in 2022

Suspension 2 2.3%

Worst in 2022

Tires 2 2.3%

Worst in 2020

Airbags 1 1.1%

Worst in 2022

Wheels 1 1.1%

Worst in 2020

Complaints filed over time

Every complaint about every BMW M340I, by the month it reached NHTSA.

Apr 2020 peak 9 Aug 2026

Compare the BMW M340I

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.

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