BMW engine codes and identification

Browse BMW engine-reference records, correction notes and identification guidance. Check each record’s sources and vehicle-specific application limits.

engine-0engine-1engine-2

This directory links to engine-reference records and their correction notes. It is not a complete or uniformly verified catalogue. Confirm the exact engine and vehicle before relying on a specification or application.

Browse BMW engine records

Records undergoing identity review are clearly marked. Only records with an evidenced manufacturer/vehicle allocation belong in the factory-application list.

Engine reference image
Engine CodeFuel TypeSeries
PetrolB-Series
DieselB-Series
DieselB-Series
PetrolB-Series
PetrolB-Series
PetrolB-Series
PetrolB-Series
PetrolB-Series
DieselB-Series
DieselB-Series
—B-Series
—B-Series
PetrolB-Series
PetrolB-Series
PetrolB-Series
PetrolB-Series
PetrolB-Series
—B-Series
—B-Series
DieselB-Series
DieselB-Series
—B-Series
—B-Series
PetrolE-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
GasolineM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
DieselM-Series
DieselM-Series
DieselM-Series
DieselM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
DieselM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
DieselM-Series
DieselM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
DieselM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
—M-Series
DieselM-Series
DieselM-Series
DieselM-Series
DieselM-Series
DieselM-Series
DieselM-Series
DieselM-Series
DieselM-Series
DieselM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
DieselM-Series
DieselM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolN-Series
PetrolN-Series
—N-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
—N-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
—N-Series
DieselN-Series
—N-Series
DieselN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
—N-Series
DieselN-Series
DieselN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolN-Series
PetrolP-Series
PetrolP-Series
PetrolP-Series
PetrolP-Series
PetrolP-Series
PetrolP-Series
PetrolP-Series
PetrolP-Series
PetrolP-Series
PetrolP-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series
PetrolM-Series

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How to confirm your BMW engine identifier

Confirm the full engine designation using vehicle-specific manufacturer records and the engine marking. An engine serial number, a registration record and a marketed power badge are not automatically the same identifier. Match the VIN/build data and the installed engine before selecting parts or a replacement. Use the applicable manufacturer record to locate the engine marking. This directory does not assert one universal VIN decoding position or stamp location. A V5C engine-number field is not, by itself, proof of an exact engine-type designation.

BMW engine families and technical distinctions

BMW technologies must be assigned to the correct engine and revision. N54 must not be described as Valvetronic-equipped; BMW identifies N55 as the first turbocharged petrol straight-six combining its cited technologies. M54 uses an electronic throttle butterfly, not individual throttle bodies. B58 and B57 timing drives are at the transmission/output side. The X5 xDrive45e uses a six-cylinder petrol engine and must not be listed as a B48 four-cylinder example. Read the individual record’s source and application scope. A technology or service requirement must not be applied to an entire brand because one engine uses it.

Manufacturing and partnership information

Production volumes, plant allocations and partnership applications require a dated manufacturer source. The previous unsourced figures and cross-brand fitment claims have been withdrawn from this hub. A manufacturing relationship does not establish engine interchangeability.

Engine Code FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

Confirm the full engine designation using vehicle-specific manufacturer records and the engine marking. An engine serial number, a registration record and a marketed power badge are not automatically the same identifier. Match the VIN/build data and the installed engine before selecting parts or a replacement.

No. A factory-application reference and a replacement-interchange decision are different. Match the full engine designation, vehicle build data, emissions equipment, controls and relevant supplier/OEM information.

No. Records have different review states. Read the correction notice, source scope and application limits on the individual record. Missing technical fields must not be inferred from similar engine codes.

References, Disclaimers and Sources

EngineCode.uk provides reference information about BMW engine codes and identification engines. It is operated by Engine Finders UK Ltd and also offers an optional replacement-engine enquiry service. Technical information can contain errors or omissions. Check the sources and verification notes for the relevant record, and confirm the details for your vehicle before buying parts or arranging work.

EngineCode.uk is a reference website operated by Engine Finders UK Ltd. It is not an official manufacturer website and is not endorsed by the manufacturers whose engines it describes. Manufacturer names and trademarks are used to identify the subjects covered. Our ownership and any commercial routes are explained in our Ownership and Commercial Disclosure.

Sources and review status EngineCode.uk is operated by Engine Finders UK Ltd and is not an official manufacturer website. Individual records show their source scope and correction status. General regulatory links provide context; they do not verify engine dimensions, service instructions or fitment. Report a specific field or application error with a supporting source through the site’s correction contact.

  • BMW, January news in brief (2009) — https://www.press.bmwgroup.com/united-kingdom/article/detail/T0020196EN_GB/january-news-in-brief?forceSitePreference=MOBILE
  • BMW, model-year 2011 fall update — https://www.press.bmwgroup.com/usa/article/detail/T0084373EN_US/bmw-model-year-2011-fall-update?language=en_US
  • BMW-authored B58 technical training, April 2015, mirrored original — https://www.manualslib.com/manual/4394456/Bmw-B58-Engine.html
  • BMW-authored B57 technical training, June 2015, mirrored original — https://studylib.net/doc/28260818/st1704-b57-engine
  • BMW, highlights for model year 2001 / M54 technical description — https://www.press.bmwgroup.com/canada/article/detail/T0032440EN/new-bmw-highlights-in-the-year-2001?language=en
  • BMW, model-year 2015 update / N57 — https://www.press.bmwgroup.com/usa/article/detail/T0182709EN_US/model-year-2015-update-information
  • BMW, summer 2019 model updates — https://www.press.bmwgroup.com/global/article/detail/T0295872EN/bmw-model-update-measures-for-summer-2019?language=en
  • BMW N55 technical training, February 2010, pages 8, 11–13, 87 — https://manualzz.com/doc/31016324/bmw-n55-b30m0--n54-b30o0-engine-technical-documentation
  • BMW TIS: M54 B22 engine general technical data — https://workshop-manuals.com/bmw/3_series_e46/320ci_m54_coupe/3_technical_data/11__engine_(m54)/0__engine_general/2_td__engine_in_general_m54_b22/
  • BMW TIS: M54 B30 engine general technical data — https://workshop-manuals.com/bmw/3_series_e46/320ci_m54_coupe/3_technical_data/11__engine_(m54)/0__engine_general/1_td__engine_in_general_m54_b_30/

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