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Executive Vehicle Verdict

The 2021 BMW 3 Series is associated with 43 official NHTSA owner defect complaints and 10 safety recall campaigns in the federal safety database.

The most frequently reported component area is Engine, accounting for 11 reports (26% of total complaints). EPA testing covers 6 certified vehicle configurations spanning 2l 4-cyl, 2L 4-Cyl plug-in hybrid, and 3L 6-Cyl hybrid configurations. Gasoline and hybrid variants deliver 25 to 30 MPG combined. Plug-in hybrid variants are rated up to 75 MPGe (25–28 MPG on gasoline) with up to 23 miles of electric driving range. The 2021 BMW 3 Series belongs to the 7th generation (G20) 3 Series platform spanning model years 2019–2026.

Platform Architecture: 7th Generation (G20) • Production Span: 2019–2026 • Platform Code: CLAR • Lifecycle Note: Pre-LCI (2019–2022) / LCI (2023–2026)
Official Federal Record Profile
  • • NHTSA Owner Complaints: 43 consumer reports filed
  • • Safety Recall Campaigns: 10 official campaigns
  • • Primary Defect Domain: Engine (11 / 26%)
  • • Field Incident Signals: 1 crash / 3 fire / 2 injury reports
  • • NCAP Crash Safety: 5 / 5 Stars Overall Laboratory Score
  • • EPA Certified Range: 25–30 MPG across 6 powertrain trims
Directly compiled from official NHTSA Office of Defects Investigation (ODI), NHTSA NCAP, and EPA FuelEconomy.gov databases.

What is the fuel economy and range of the 2021 BMW 3 Series?

Official EPA laboratory test ratings, electric driving range, and annual energy cost estimates by certified vehicle variant

Variant Engine Drivetrain Transmission City Highway Combined EV Range Est. Annual Fuel Cost
330i 2L 4-Cyl Rear-Wheel Drive Automatic (S8) 26 MPG 36 MPG 30 MPG — $2,550 / yr
330i xDrive 2L 4-Cyl All-Wheel Drive Automatic (S8) 25 MPG 34 MPG 28 MPG — $2,700 / yr
330e Plug-in Hybrid 2L 4-Cyl Rear-Wheel Drive Automatic (S8) 72 MPGe (25 MPG) 80 MPGe (33 MPG) 75 MPGe (28 MPG) 23 mi EV (320 mi total) $2,700 / yr
M340i Hybrid 3L 6-Cyl Rear-Wheel Drive Automatic (S8) 23 MPG 32 MPG 26 MPG — $2,900 / yr
M340i xDrive Hybrid 3L 6-Cyl All-Wheel Drive Automatic (S8) 22 MPG 31 MPG 25 MPG — $3,050 / yr
330e xDrive Plug-in Hybrid 2L 4-Cyl All-Wheel Drive Automatic (S8) 64 MPGe (22 MPG) 71 MPGe (30 MPG) 67 MPGe (25 MPG) 20 mi EV (290 mi total) $3,050 / yr
Data Boundary Note: EPA specifications are shown by certified vehicle configuration. NHTSA complaints and recall totals are recorded at the model-year level across all configurations.

What are the crash test safety ratings for the 2021 BMW 3 Series?

Official 5-Star Safety Ratings evaluated by the National Highway Traffic Safety Administration

Tested Drivetrain / Cab Variant Overall Rating Frontal Crash Side Crash Rollover Rating Rollover Risk
4 DR AWD 9.2%
4 DR RWD 9.2%
Active Driver Assistance Systems (NHTSA Recorded): Forward Collision Warning (FCW) is documented as Standard and Lane Departure Warning (LDW) is documented as Optional in official NHTSA records for tested 2021 BMW 3 Series models.
View complete 2021 BMW 3 Series crash test & safety breakdown →

What defect complaints are reported for the 2021 BMW 3 Series?

Summary of 43 verified consumer defect submissions filed with the NHTSA Office of Defects Investigation (ODI)

Total Complaints
43
Crash Reports
1
Fire Reports
3
Complaints w/ Injury
2
Total Injuries
2

Top Reported Problem Categories

Ranked by total consumer complaint submissions recorded by NHTSA

Engine 11 complaints
Electrical System 8 complaints
ELECTRICAL SYSTEM,ENGINE 2 complaints
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE 2 complaints
Air Bags 1 complaint

Data Attribution & Context: Complaints are self-reported by vehicle owners to NHTSA and represent unverified consumer submissions. Complaint volume does not equal a statistically controlled failure rate and is not adjusted for total vehicles sold or cumulative mileage driven.

View all 2021 BMW 3 Series problems & component breakdown (23 categories) →

Are there open safety recalls on the 2021 BMW 3 Series?

Manufacturer safety recall campaigns monitored and recorded by NHTSA

NHTSA Campaign #25V636000 Active Recall
Affected Component: ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY

Defect Summary: BMW of North America, LLC (BMW) is recalling certain 2019-2021 BMW 330i, 2019-2022 BMW Z4, 2020-2022 BMW 530i, X3, X4, Toyota Supra, 2021-2022 BMW 430i, 430i Convertible, and 2022 BMW 230i vehicles. The engine starter relay may corrode, causing the relay to overheat and short circuit.

Free Manufacturer Remedy: Owners are advised to park their vehicles outside and away from structures until the remedy is complete. Dealers will replace the engine starter, free of charge. Owner notification letters were mailed February 6, 2026. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov November 14, 2025.
NHTSA Campaign #26V056000 Active Recall
Affected Component: ELECTRICAL SYSTEM:STARTER ASSEMBLY

Defect Summary: BMW of North America, LLC (BMW) is recalling certain 2021-2023 Toyota Supra, 2022-2023 2 Series Coupe, 2021-2024 5 Series (xDrive), 2021-2022 Z4, 2022-2024 4 Series (Gran Coupe), 2021-2024 4 Series (Convertible and xDrive Convertible), 2021-2023 4 Series (Coupe), 2021-2024 3 Series, 2021-2023 X4, 2021-2024 X3 vehicles. Please see the recall report for a complete list of all models. The engine starter may overheat and catch fire due to wear on an internal component.

Free Manufacturer Remedy: Dealers will replace the engine starter, free of charge. Owner notification letters were mailed July 21, 2026. Owners may contact BMW customer service at 1-800-525-7417 or Toyota's customer service at 1-800-331-4331. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning March 24, 2026.
NHTSA Campaign #23V584000 Active Recall
Affected Component: SEAT BELTS

Defect 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."

Free Manufacturer 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.
View all 2021 BMW 3 Series recalls & campaign history (10 campaigns) →
Search Intelligence

Quick Answers: Key Questions Drivers Ask About the 2021 BMW 3 Series

Direct, deterministic answers synthesized from verified United States government databases for the 2021 BMW 3 Series

How many safety recalls does the 2021 BMW 3 Series have?

The 2021 BMW 3 Series is associated with 10 official NHTSA safety recall campaigns in AutoUtility's current federal records.

If your individual vehicle is affected by an open safety recall, NHTSA advises owners to contact an authorized franchised dealership for the recall remedy at no charge. Because recall campaigns apply to specific production runs and equipment batches, vehicle owners should verify their 17-digit VIN at NHTSA.gov.

View all 10 recall campaigns & remedy details →
Source: NHTSA Safety Recalls Database (49 U.S.C. 30118)

What are the most common problems reported for the 2021 BMW 3 Series?

NHTSA records list 43 consumer defect complaints for the 2021 BMW 3 Series. The most frequently referenced vehicle system is Engine, appearing in 11 filings (26% of submissions).

Consumer complaints represent unverified owner submissions filed under federal reporting guidelines and describe reported component behavior rather than audited failure rates.

Explore full 2021 BMW 3 Series defect complaint breakdown →
Source: NHTSA Office of Defects Investigation (ODI)

What is the NHTSA safety rating for the 2021 BMW 3 Series?

Under the NHTSA New Car Assessment Program (NCAP), the 2021 BMW 3 Series earned an Overall Safety Rating of 5 out of 5 stars across 2 tested configuration(s).

Laboratory evaluations include a 35 mph frontal barrier crash, side barrier and pole impact tests, and static rollover resistance assessments.

View detailed crash test laboratory breakdown →
Source: NHTSA New Car Assessment Program (NCAP)

What fuel economy (MPG) does the 2021 BMW 3 Series get?

Official EPA laboratory estimates for the 2021 BMW 3 Series range from 25 to 30 MPG combined (55% city / 45% highway weighted) depending on engine, transmission, and drivetrain configuration.

Using AutoUtility's standardized operating cost model (15,000 miles/year, $3.50/gal gas, $0.16/kWh electricity), annual energy expenditures range across certified configurations based on official EPA laboratory test baselines.

Compare MPG ratings across all certified trims →
Source: EPA FuelEconomy.gov Certified Database
Official US Government Data Provenance

The specifications, safety ratings, defect reports, and recall campaigns published on this page are retrieved directly from official United States Government agency databases:

  • NHTSA Office of Defects Investigation (ODI): Consumer complaints and defect reports.
  • NHTSA New Car Assessment Program (NCAP): Frontal, side, and rollover 5-Star crash safety test ratings.
  • U.S. EPA / FuelEconomy.gov: Standardized multi-cycle dynamometer fuel economy, MPGe, and electric driving range ratings.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.