BMW · model year 2021
2021 BMW 4 Series
Specifications and certified data for the 2021 model year. All BMW 4 Series model years →
2021 UK builds, engines & trims
| Build | Engine | Fuel | Gearbox | Power hp | CO₂ g/km | MPG | Record |
|---|---|---|---|---|---|---|---|
| Hybrid | — | Hybrid | Automatic | 255 | 105 | — | Dossier |
| Diesel | — | Diesel | Automatic | 230 | 140 | — | Dossier |
| Petrol | — | Petrol | Automatic | 220 | 165 | — | Dossier |
UK Vehicle Certification Agency fuel & emissions data and ACS catalogue records, Open Government Licence v3.0, VCA ↗.
2021 US EPA fuel-economy records
| Year | Engine | Drive | Transmission | Fuel | MPG (US) comb. | CO₂ g/mi | EV range mi | Source |
|---|---|---|---|---|---|---|---|---|
| 2021 | 2.0 L 4-cyl | Rear-Wheel Drive | Automatic (S8) | Premium | 29 | 304 | — | EPA ↗ |
| 2021 | 2.0 L 4-cyl | All-Wheel Drive | Automatic (S8) | Premium | 27 | 325 | — | EPA ↗ |
| 2021 | 2.0 L 4-cyl | Rear-Wheel Drive | Automatic (S8) | Premium | 27 | 326 | — | EPA ↗ |
US EPA test figures (US MPG, US test cycle), fueleconomy.gov ↗, US government public domain.
US safety recalls
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26V056000 2026-01-30 · model years 2021, 2022, 2023, 2024
ELECTRICAL SYSTEM:STARTER ASSEMBLY
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…
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.…
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25V636000 2025-09-23 · model years 2021, 2022
ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY
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.
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.…
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23V584000 2023-08-16 · model years 2021, 2022
SEAT BELTS
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…
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.
NHTSA recalls database (US government, public domain). Recalls apply to US-market vehicles; check the manufacturer for your country.
Sources
- UK VCA fuel & emissions data — https://carfueldata.vehicle-certification-agency.gov.uk/Open Government Licence v3.0
- US EPA / DOE FuelEconomy.gov — https://www.fueleconomy.gov/feg/ws/index.shtmlUS Government public domain
- NHTSA recalls database — https://www.nhtsa.gov/recallsUS Government public domain
- Car Model Index — https://models.autoculturesociety.com/Compiled record. Sources that do not permit reuse are not copied; this index is credited instead.