2021 BMW M
The 2021 BMW M is sold in the U.S. as a hybrid and gas compact sedan with 26 EPA-rated configurations. The most efficient version, the M340i, is EPA-rated at 26 mpg combined. NHTSA lists 14 recall campaigns for this model year, 1 rated critical, which gives it a Safety Signal grade of F. Owners have filed 26 complaints, most often about the engine.

Specs & fuel economy
Source: EPA fueleconomy.gov| Configuration | Powertrain | Drive | Engine / motor | City | Hwy | Comb | Annual fuel* |
|---|---|---|---|---|---|---|---|
| M340i | Hybrid | RWD | 3.0L 6-cyl turbo + 44V Li-Ion | 23 | 32 | 26 | $3,150 |
| M340i xDrive | Hybrid | AWD | 3.0L 6-cyl turbo + 44V Li-Ion | 22 | 31 | 25 | $3,300 |
| M440i xDrive Coupe | Hybrid | AWD | 3.0L 6-cyl turbo + 44V Li-Ion | 22 | 31 | 25 | $3,300 |
| M235i xDrive Gran Coupe | Gas | AWD | 2.0L 4-cyl turbo | 23 | 32 | 26 | $3,150 |
| M240i Convertible | Gas | RWD | 3.0L 6-cyl turbo | 21 | 30 | 24 | $3,400 |
| M240i Coupe | Gas | RWD | 3.0L 6-cyl turbo | 21 | 30 | 24 | $3,400 |
| M240i xDrive Convertible | Gas | AWD | 3.0L 6-cyl turbo | 21 | 30 | 24 | $3,400 |
| M240i xDrive Coupe | Gas | AWD | 3.0L 6-cyl turbo | 21 | 30 | 24 | $3,400 |
| M240i Convertible | Gas | RWD | 3.0L 6-cyl turbo | 19 | 27 | 21 | $3,900 |
| M240i Coupe | Gas | RWD | 3.0L 6-cyl turbo | 19 | 27 | 21 | $3,900 |
| M2 Competition Coupe | Gas | RWD | 3.0L 6-cyl turbo | 18 | 24 | 20 | $4,100 |
| M550i xDrive | Gas | AWD | 4.4L 8-cyl turbo | 17 | 25 | 20 | $4,100 |
| M2 Competition Coupe | Gas | RWD | 3.0L 6-cyl turbo | 16 | 23 | 19 | $4,350 |
| M3 | Gas | RWD | 3.0L 6-cyl turbo | 16 | 23 | 19 | $4,350 |
| M3 Competition | Gas | RWD | 3.0L 6-cyl turbo | 16 | 23 | 19 | $4,350 |
| M4 Competition Coupe | Gas | RWD | 3.0L 6-cyl turbo | 16 | 23 | 19 | $4,350 |
| M4 Coupe | Gas | RWD | 3.0L 6-cyl turbo | 16 | 23 | 19 | $4,350 |
| M850i xDrive Convertible | Gas | AWD | 4.4L 8-cyl turbo | 17 | 24 | 19 | $4,350 |
| M850i xDrive Gran Coupe | Gas | AWD | 4.4L 8-cyl turbo | 17 | 24 | 19 | $4,350 |
| M5 | Gas | AWD | 4.4L 8-cyl turbo | 15 | 21 | 17 | $4,850 |
| M5 Competition | Gas | AWD | 4.4L 8-cyl turbo | 15 | 21 | 17 | $4,850 |
| M8 Competition Convertible | Gas | AWD | 4.4L 8-cyl turbo | 15 | 21 | 17 | $4,850 |
| M8 Competition Gran Coupe | Gas | AWD | 4.4L 8-cyl turbo | 15 | 21 | 17 | $4,850 |
| M8 Convertible | Gas | AWD | 4.4L 8-cyl turbo | 15 | 21 | 17 | $4,850 |
| M8 Gran Coupe | Gas | AWD | 4.4L 8-cyl turbo | 15 | 21 | 17 | $4,850 |
| M760i xDrive | Gas | AWD | 6.6L 12-cyl turbo | 13 | 20 | 16 | $5,150 |
*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 42925, 42926, 43146, 42819, 42878, 42875, 42880, 42877, 42879, 42876.
Emissions & certification
Source: EPA emission certificates| Configuration | Smog rating | Emission standard | Where it can be sold new | SmartWay |
|---|---|---|---|---|
| M3, M3 Competition, M340i, M340i xDrive, M4 Competition Coupe, M4 Coupe, M440i xDrive Coupe | 5 / 10 | California LEV-III ULEV70 / Federal Tier 3 Bin 70 | All 50 states (federal, all altitudes); California and states following California standards | — |
| M2 Competition Coupe, M235i xDrive Gran Coupe, M240i Convertible, M240i Coupe, M240i xDrive Convertible, M240i xDrive Coupe, M5, M5 Competition, M550i xDrive, M760i xDrive, M8 Competition Convertible, M8 Competition Gran Coupe, M8 Convertible, M8 Gran Coupe, M850i xDrive Convertible, M850i xDrive Gran Coupe | 3 / 10 | California LEV-III ULEV125 / Federal Tier 3 Bin 125 | All 50 states (federal, all altitudes); California and states following California standards | — |
Certified for all fifty states, so it can be registered new anywhere in the U.S. Gas-guzzler tax applies to M5, M5 Competition, M760i xDrive, M8 Competition Convertible, M8 Competition Gran Coupe, M8 Convertible, M8 Gran Coupe — a federal excise the manufacturer pays and prices in.
The smog rating scores tailpipe pollutants other than greenhouse gases, 1 (worst) to 10 (best), and is comparable only within a model year. The standard is the federal bin or California tier the configuration was certified to. Both come from the EPA certificate behind the window sticker.
Specifications filed with NHTSA
Source: NHTSA vPICDimensions Exterior
| Body style | Sedan/Saloon |
| Doors | 4 |
| GVWR class | Class 1: 6,000 lb or less (2,722 kg or less) |
Engine Basics
| Cylinders | 6 |
| Displacement | 3 L |
Engine Output
| Horsepower | 382 hp |
Fuel Economy
| Fuel | Gasoline |
Seating
| Seat rows | 2 |
| Seating capacity | 5 seats |
Transmission
| Drivetrain | AWD/All-Wheel Drive |
| Transmission | Automatic |
| Transmission speeds | 8 |
Driver assistance
Standard: Anti-lock brakes, Automatic emergency braking, Backup camera, Blind-spot monitoring, Electronic stability control, Forward collision warning, Lane departure warning, Lane keeping assist, Pedestrian automatic emergency braking
Optional: Adaptive cruise control, Parking assist, Rear cross-traffic alert
Filed by the manufacturer with NHTSA under the federal vehicle-identification rule and decoded from the VIN pattern — not a manufacturer press kit, so it describes the configurations we could identify rather than every trim (seen: 3-Series, 4-Series, M2 Competition, M3 Competition). Figures for the trim you are looking at may differ.
Factory warranty running out?
The 2021 BMW M is in the years where transmission, electronics and drivetrain repairs land on the owner. What an extended plan does and does not cover is worth reading before a dealer quotes you one.
What to check before you buy →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Recalls (14)
Source: NHTSA recall databaseSeat Belts
Seats
Seat Belts
Structure
Seat Belts
Air Bags
Back Over Prevention
Visibility
Service Brakes, Hydraulic
Electrical System
Fuel System, Gasoline
Back Over Prevention
Child Seat
These are vehicle campaigns — the ones the automaker filed against this model. NHTSA also records equipment recalls, filed by a parts maker against a component (a tyre, a child seat, an aftermarket part), and those are not listed here or counted above. nhtsa.gov/recalls shows both for a VIN.
NHTSA defect investigations
Electrical System:Propulsion System — Pedestrian alert sounds closed
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021. On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject mat
Opened Jan 27, 2023 · closed Aug 7, 2023 · action DP22005 · the investigation’s page →
Whether any of this applies to one specific M
A campaign covers a build range, not a model year, so two identical-looking cars from 2021 can differ. Both of these check a VIN against the manufacturer’s own list, free, in about ten seconds. BMW publishes its own lookup because federal rule 49 CFR 573.15 requires it to, and to keep it current to within seven days.
Hear about a recall before the letter does
The manufacturer’s letter is the last step of a recall: it has up to 60 days after filing to mail owners, at the address on the registration. We email you the day NHTSA posts a recall on the 2021 BMW M, with what to do next. Nothing else, ever — no newsletter, no marketing, one-click unsubscribe in every message.
Parts & accessories for the 2021 BMW M
Search by fitment on eBay Motors — OEM take-offs, aftermarket, and the trim pieces dealers no longer stock. The listing and the price are the seller's.
Find parts for this M →Owner complaints
Source: NHTSA complaint database1 involved a crash · 2 a fire · 2 injuries · 0 deaths reported
13 per 10,000 built · BMW reported 19,392 M built (its Early Warning production report to NHTSA)
Filed per year: 2021: 2 · 2022: 1 · 2023: 4 · 2024: 4 · 2025: 4 · 2026: 11
Most-cited components
In owners' own words
Filed with NHTSA by the people who own these cars, one per problem area. Quoted as written, with anything identifying removed.
BMW Federal Emissions Recall Campaign - Delivery Stop: Replace Coolant Expansion Tank [B170324] The manufacturer's recall remedy replaces a defective, heat-compromised plastic coolant reservoir with an identical plastic component that is subject to the exact same thermal fatigue and catastrophic failure.
BMW dealer noted "clunk on accel" at 57,152 miles on RO #224018 under engine mounts. Dealer quoted $3,463.38 for engine mounts. I declined repair. Clunk on acceleration is still present at 60,700 miles. Same symptom as BMW Service Bulletin SIB 27-02-20 for 4 Series Drive jerking/shuddering from transfer case.
I am seeing a lot of concerns regarding the seatbelt extenders, the buckle end pretensioner, seat wiring harness and the yellow box connectors that are where the main power and air bag SRS connections sit under the drivers seat.
Started as low creaking noise coming from front left wheel. Slow speeds, over small bumps. Over time (one month), creaking noises became louder and more frequent. At that time, steering was starting to feel stiff when turning to the left.
Vehicle brake very very loudly. BMw claims this is normal, this is not true. Vehicle has extremely low miles and performs bad when braking
I have been smelling a burning odor in the vehicle for almost a year which the dealership and an independent shop had not been able to diagnose. The car was recently throwing Drivetrain Error codes which prompted a visit to the dealership.
Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.
Reported by BMW itself: 10 death-or-injury claims on this model year in its quarterly Early Warning reports to NHTSA (49 CFR 579.21): 11 injured, as claimed, not verified — about 52 per 100,000 built. Every M model year, by year and system → Dated and by system, they are exhibit F of the defect dossier.
Crash ratings
Source: NHTSA NCAPNHTSA has not published 5-Star crash ratings for this model year.
Driver-assist crash reports (1)
Source: NHTSA Standing General Order 2021-011 minor
Jun 2024 to Jun 2024 · 1 with an air bag deployment · 1 towed
What was engaged, and what was hit
System named: not named in the filings
Crash partner: Heavy Truck 1
Filed by: BMW of North America, LLC
| Incident | System | Struck | Injury alleged | State | Speed | Report |
|---|---|---|---|---|---|---|
| Jun 2024 | Level 2 | Heavy Truck | minor | FL | 79 mph | 10039-7994 |
A report under the General Order is a notice the manufacturer or operator must file within days of hearing of a crash in which a Level 2 driver-assist or automated-driving system was engaged within 30 seconds of impact. It is filed before anything is verified, and entities with telematics hear of far more crashes than entities that rely on complaints, so counts say as much about the reporting as about the car and are not comparable across makes. Nothing is normalised by fleet size. Every report on file, by make and year → · NHTSA’s page and files
Service bulletins & campaigns
Source: NHTSA manufacturer communications- 15 years or 150,000 miles · BMW warranty extension 1390900300For this vehicle, the EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been extended to 15 years/150,000 miles, from the original 10 years/120,000 miles…
- 15 years or 150,000 miles · BMW warranty extension 5174900200The Radiator Grilles Lower Active Air Flap Assembly limited warranty for defects in materials and/or workmanship has been extended to 15 years / 150,000 miles as determined from the original first…
- Term not in NHTSA’s summary · BMW warranty extension 1353900800The Fuel Injector Condition-Specific Repair Coverage Program applies to qualifying repairs for the required replacement of one or more the fuel injectors which were determined to have failed due to a…
- 10 years or 120,000 miles · BMW warranty extension 6577900500The Supplemental Restraint Systems (SRS) Front Passenger’s Seat Occupancy Capacitive Interior Sensor (CIS) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to…
- 15 years or 150,000 miles · BMW warranty extension 1165900700The engines turbocharger wastegate valve controller limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original…
- Term not in NHTSA’s summary · BMW warranty extension B011724The Fuel Injector Condition-Specific Repair Coverage Program applies to qualifying repairs for the required replacement of one or more the fuel injectors which were determined to have failed due to a…
2 more in this page’s JSON.
The term and the vehicles it covers are the manufacturer’s, as NHTSA’s summary of each filing states them; a dealer checks one particular car by its VIN. Every BMW warranty extension (46) → · Every warranty extension on file, all makes →
Most often about: Equipment, Electrical System, Engine, Steering, Equipment Adaptive/Mobility.
- B010126 Warranty extension2026-05-06 · Engine
- The EVAP systems purge (vent) valve limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in-service / delivery date.
- B010224 Warranty extension2026-05-05 · Engine
- The EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original in-service date.
- B410725 Service bulletin2026-01-08 · Structure — Body
- While driving on a smooth and/or unevenroad, a “cracking” sound is heard from therear wheel arch area (highlighted in orange) on either the right or left side.
- B011724 Warranty extension2025-09-19 · Engine
- The Fuel Injector Condition-Specific Repair Coverage Program applies to qualifying repairs for the required replacement of one or more the fuel injectors which were determined to have failed due to a buildup of external corrosion in the engine’s center fuel injector bore area that resulted after this location was periodically contaminated by engine coolant residue over time. This special program’s
- B410725 Service bulletin2025-08-20 · Structure — Body
- While driving on a smooth and/or uneven road, a “cracking” sound is heard from the rear wheel arch area (highlighted in orange) on either the right or left side.
- B010225 Warranty extension2025-05-19 · Engine
- The engines turbocharger wastegate valve controller limited warranty for defects in materials and / or workmanship has been extended to 15 years / 150,000 miles as determined from the original in-service date.
- B010325 Warranty extension2025-04-15 · Structure — Body
- The Radiator Grilles Lower Active Air Flap Assembly limited warranty for defects in materials and/or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in-service / delivery date.
- B720225 Warranty extension2025-04-09 · Air Bags
- The Supplemental Restraint Systems (SRS) Front Passenger’s Seat Occupancy Capacitive Interior Sensor (CIS) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original in-service / first delivery date.
A service bulletin is the manufacturer telling its dealers how to diagnose or repair a known condition. It is not a recall, not a finding that the vehicle is defective, and the work is not automatically free — though a bulletin is often what a dealer works from when you describe a symptom, so quoting the document number can save a diagnosis. The count is every communication filed; the list shows the most recent, one entry per campaign, because a single campaign is usually filed as several documents on the same day. The summaries are NHTSA's; the full documents come from the manufacturer.
At the New York inspection station
Source: New York State DMVIn New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2021 BMW M failed the emissions check on 3.1% of first inspections — higher than the 1.9% for every 2021 model-year vehicle inspected; and the safety inspection on 0.69% (every 2021 vehicle: 1.5%).
failed emissions
288 initial inspections of 278 vehicles.
| Measure | The 2021 M | Every 2021 vehicle | Behind it |
|---|---|---|---|
| Failed the emissions check | 3.1% | 1.9% | 286 |
| Failed the safety inspection | 0.69% | 1.5% | 288 |
| Air-bag warning lamp stayed lit | 0.35% | 0.19% | 288 |
| Miles driven a year | 6,397 | 10,343 | odometer at inspection |
| Average odometer | 33,981 | 54,681 | odometer at inspection |
New York’s emissions test on these model years is an on-board diagnostics check: it fails a car whose check-engine light is on or whose self-tests have not finished. First inspections only, so a car that failed and came back is counted once; private and special plates, not taxis, livery or commercial plates. A rate appears only where at least 200 inspections stand behind it. “Every 2021 vehicle” is every 2021 model-year car, SUV and pickup inspected in the same window, all makes. This is the state’s record of test results, not a reliability score by itself. Source: New York State Department of Motor Vehicles, Vehicle Inspections (data.ny.gov, Open NY terms).
Common questions about the 2021 M
Source: EPA, NHTSA and manufacturer press kitsDoes the 2021 BMW M have any recalls?
NHTSA has posted 14 recall campaigns for the 2021 BMW M, 1 of them rated critical. The most serious on file is 20V761000, covering Electrical System. Check your own VIN at nhtsa.gov/recalls; a recall applies to specific build ranges, not every car.
How safe is the 2021 BMW M?
NHTSA has not published a crash-test rating for the 2021 BMW M yet. On the recall record WhichTrim grades it F (48/100), which measures open and severe recalls rather than crash protection.
What is the fuel economy of the 2021 BMW M?
Across the 26 EPA-rated configurations of the 2021 BMW M, the best EPA combined figure is 26 mpg. Figures are the EPA's own, per configuration, and every one is listed above.
What do owners complain about on the 2021 BMW M?
Owners have filed 26 complaints with NHTSA about the 2021 BMW M, most often about engine, power train, electrical system. Of those, 1 involved a crash, 2 a fire, 2 reported injuries. Complaints are unverified owner reports, so treat the pattern as a signal and the individual report as an anecdote.
How clean is the 2021 BMW M?
The EPA smog rating for the 2021 BMW M runs 3 to 5 out of 10 across its configurations. That score covers tailpipe pollutants other than greenhouse gases, and it only compares vehicles within the same model year. It is certified for all fifty states, so it can be registered new anywhere in the U.S. Its configurations were certified to different standards — California LEV-III ULEV125, California LEV-III ULEV70, Federal Tier 3 Bin 125, Federal Tier 3 Bin 70 — which the table above lists per configuration.
Are there service bulletins for the 2021 BMW M?
The manufacturer has filed 1262 service bulletins and related communications with NHTSA for the 2021 BMW M, most often covering equipment, electrical system, engine. The most recent is dated 2026-05-06. A bulletin is not a recall: it is the repair procedure a manufacturer sends its dealers for a condition it knows about, and the work is not automatically paid for. It is still worth knowing — if the symptom matches, quoting the bulletin number at the service desk can save a diagnosis. The document numbers and summaries are listed above.
How does the 2021 BMW M do at state inspection?
In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2021 BMW M failed the emissions check on 3.1% of first inspections — higher than the 1.9% for every 2021 model-year vehicle inspected; and the safety inspection on 0.69% (every 2021 vehicle: 1.5%). The figures are New York State DMV’s own inspection records, first inspections only, and the table above sets each one against every vehicle of the same model year.
What we hold, and what an empty row means
Paid vehicle-history reports will not tell you the difference between “nothing happened to this car” and “we never received that record” — both of the big two say as much in their own help pages. Most of what is on this page comes from complete federal registers, so we can tell you which is which, row by row.
| Data | Held | Source | What it covers — or what empty means |
|---|---|---|---|
| Fuel economy & configurations | 26 configurations | EPA certification records | Every configuration the EPA certified for sale, with its own test figures. |
| Emission certificates | 26 configurations | EPA emission certificates | Smog rating, standard and the sales area that decides where the car can be sold new. |
| Recalls | 14 | NHTSA recall campaigns | A complete federal register: every campaign covering this model year, with severity and advisory flags. |
| Owner complaints | 26 | NHTSA complaint database | Also complete, but unverified: these are reports owners filed, not findings. Counts scale with how many were sold. |
| Crash ratings | none | NHTSA NCAP | NHTSA has not tested this model year. Cars are selected for testing, so untested is not unsafe. |
| Service bulletins | 1262 | NHTSA manufacturer communications | Everything the manufacturer told its dealers about a defect or malfunction, short of a recall. |
| Investigations | 1 | NHTSA Office of Defects Investigation | Open and closed defect investigations, with the agency's own narrative. |
| Driver-assist crash reports | 1 | NHTSA Standing General Order 2021-01 | Crashes the manufacturer or operator reported with a Level 2 or automated-driving system engaged. Notices, filed before verification; not comparable across makes. |
| Specifications filed with NHTSA | 12 fields | NHTSA vPIC, decoded from VIN patterns | What the manufacturer filed under the federal VIN rule — a configuration, not the full trim ladder. |
| Trims, pricing & equipment | none | Manufacturer press kit | We have not transcribed a press kit for this model year yet. This is our gap, not the manufacturer's — the one row here where an empty cell means we are behind. |
Rebuilt nightly; this page was generated 2026-10-26. Every figure above is traceable to the source named beside it, and the JSON for this page carries the same values with their identifiers.
Sources & method
Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). The most serious recall counts in full and each further one counts 85% of the one before, because a vehicle sold in millions is recalled more often than a rare one without being more dangerous — and because a flat subtraction bottomed the scale out, scoring a vehicle with 22 recalls within a point of one with six. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Read it as what it counts: recall campaigns on the federal record, weighted by severity. The damping reduces the sales bias by roughly 40% but does not remove it: like our complaint counts, this is not normalized by how many were sold, so a best-seller still scores somewhat worse than an obscure model with the same real risk. NHTSA crash ratings, do-not-drive and park-outside advisories, and the crash, fire, injury and death counts in owner complaints are reported separately on every page and never blended into the letter — a vehicle can hold five stars and a poor letter at once, and where that happens we say so rather than leave you to notice. Because the scale subtracts from a clean sheet, a model year too new to have been recalled, complained about or bulletined scores full marks on an empty record; we label those grades provisional rather than present them as earned.
EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed nightly.