- [1] BMW model upgrade measures in the summer of 2016
BMW Group · EN · Europe · Sections “BMW M Performance models of the BMW 1 Series and BMW 2 Series” (M140i) and “New four-cylinder petrol engine for eight models” (120i, 125i), from July 2016 · Consultado em 08/10/2026
- [2] BMW Technical training — B46 Engine (with the B38 three-cylinder)
BMW of North America — Technical training (archive.org copy) · EN · USA · Information status June 2014 · §1 (B38/B46, “Bx8”) · §2.2.7 Chain drive, Bx8 engines (pp. 57–58) · Consultado em 08/10/2026
- [3] BMW Media Information 05/2017 — The new BMW 2 Series Coupe / The new BMW 2 Series Convertible
BMW Group · EN · Europe (ACEA) · pp. 2–3 (launch July 2017, Leipzig, soft-top up to 50 km/h), pp. 4–6 (bi-LED headlights, LED rear lights, instrument panel), pp. 7–8 (engines, gearboxes, xDrive), p. 12 (M240i, M2) · Consultado em 08/10/2026
- [4] BMW Media Information 5/2017 — Specifications, BMW 2 Series Coupe and Convertible
BMW Group · EN · Europe (ACEA) · Valid from 7/2017 · Coupé: 218i pp. 1–2, 220i/230i, M240i, M240i xDrive, 218d, 220d/220d xDrive, 225d; Convertible: 218i, 220i/230i, M240i, M240i xDrive, 218d, 220d, 225d (“Engine oil — oil change volume”) · Consultado em 08/10/2026
- [5] BMW UK Technical data — 2 Series Convertible LCI (F23LCI)
BMW Group UK · EN · United Kingdom · Effective production week 44/2017 · engine type (B38B15M0, B48B20M0, B48B20O0, B58B30M0, B47D20U0, B47D20O0, B47D20T0), gearbox, “Engine oil (filling quantity)” · Consultado em 08/10/2026
- [6] BMW Betriebsanleitung — BMW 2er (Coupé F22, Online-Version für Sach-Nr. 01402723381)
BMW AG (copy hosted by kfz-handbuch.de) · DE · Germany · deutsch VI/18 · pp. 132–133 (Servicebedarf, Service Historie) · p. 203 (Mikrofilter) · pp. 270–273 (Motoröl, Elektronische Ölmessung, Motorölsorten) · pp. 274–275 (Kühlmittel) · pp. 276–277 (BMW Wartungssystem, CBS) · Consultado em 08/10/2026
- [7] BMW Service Inclusive: Neuwagen & Junge Gebrauchte (bmw.de, archived 09/11/2016)
BMW AG · DE · Germany · Section “BMW Service Inclusive für Neuwagen und Junge Gebrauchte” (list of CBS-triggered services) · Consultado em 08/10/2026
- [8] ADAC Autokatalog — BMW 2er-Reihe F22/F23/F87 (1. Facelift), 2017 – 2021
ADAC · DE · Germany · Model groups: Coupé (F22) 2017–2021, M Performance Coupé, M2 / M2 CS Coupé (F87), Cabrio (F23) 2017–2021, M Performance Cabrio; Coupé model list with kW/PS and production dates · Consultado em 08/10/2026
- [9] ADAC Autokatalog — BMW 230i Coupé Advantage (07/16 – 06/17)
ADAC · DE · Germany · Technische Daten: Motorcode, Leistung, Drehmoment, Hubraum, Modellstart/-ende, Getriebe, Schadstoffklasse, Nockenwellensteuerung · Rückrufe · Consultado em 08/10/2026
- [10] ADAC Autokatalog — BMW 230i Cabrio Advantage (07/16 – 06/17)
ADAC · DE · Germany · Technische Daten: Motorcode, Leistung, Drehmoment, Hubraum, Modellstart/-ende, Getriebe, Schadstoffklasse, Nockenwellensteuerung · Rückrufe · Consultado em 08/10/2026
- [11] ADAC Autokatalog — BMW 230i Coupé Sport Line Steptronic Sport (07/17 – 02/18)
ADAC · DE · Germany · Technische Daten: Motorcode, Leistung, Drehmoment, Hubraum, Modellstart/-ende, Getriebe, Schadstoffklasse, Nockenwellensteuerung · Rückrufe · Consultado em 08/10/2026
- [12] ADAC Autokatalog — BMW 230i Cabrio Sport Line Steptronic Sport (07/17 – 02/18)
ADAC · DE · Germany · Technische Daten: Motorcode, Leistung, Drehmoment, Hubraum, Modellstart/-ende, Getriebe, Schadstoffklasse, Nockenwellensteuerung · Rückrufe · Consultado em 08/10/2026