G26 · 2021–…

BMW 430i Gran Coupé G26 · 245 hp (since 2021)

The 430i Gran Coupé has had 180 kW (245 hp) from launch: rear-wheel drive at first, xDrive from spring 2022, and xDrive only since the 2024 update. To check this is your version, compare with the 180 kW on the registration document.

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Technical specifications

Fuel
Petrol
Power
245 PS / 180 kW
Displacement
1 998 cm³
Torque
400 Nm
Cylinders
4
Engine code
B48 (B48B20B)
Period covered
2021–…
Documented market
Europe

Transmission

  • Automatic · 8 speeds · 2021

Figures apply to the cited configuration and market; equipment and transmissions may vary by production date.

Specification source : [4] BMW Group [5] BMW Group [9] BMW Group

What distinguishes this version

1,998 cc four-cylinder (ADAC: B48B20B): 180 kW (245 hp) between 4,500 and 6,500 rpm, 400 Nm. Eight-speed Steptronic. 0–100 km/h in 6.2 s with rear-wheel drive (06/2021 sheet) and 6.1 s with xDrive (03/2022 and 07/2024 sheets), 250 km/h. ADAC lists both drive layouts from 06/2023 to 06/2024; the 07/2024 sheet only keeps the 430i xDrive.

Source : [4] [5] [2] [9] [12] [13]

Engine oil: quantity

BMW’s sheets disagree: 5.25 l for the 430i (06/2021) and the 430i xDrive (07/2024), but 5.75 l for the 430i xDrive on the 03/2022 sheet, the figure the Coupé and Convertible sheets give for the same 180 kW engine. Have the quantity confirmed for your VIN before the oil change. Approvals and viscosity grades: see the “B48 engine” block on this page.

Source : [4] [5] [9]

What the service display tracks

Due dates are calculated by Condition Based Service from how the car is used. BMW’s regular maintenance covers engine oil, brake fluid, a vehicle check, air filter, cabin microfilter and spark plugs, each triggered by the calculated service requirement. BMW’s list sets no mileage or period: the reference is the date your car displays.

Source : [1]

Prepare the next service

Check the power on the registration document (180 kW) and note the items and dates the car displays. Ask for the oil quantity specified for your VIN. Have the VIN checked against the recalls listed by ADAC and keep a record of every job.

Source : [12]

BMW B48 petrol engine (2.0 l, four-cylinder)

This applies to every car fitted with the B48 engine.

What the B48 is

Inline four-cylinder petrol engine of 1,998 cc (82 mm bore, 94.6 mm stroke) with twin-scroll turbocharger, direct injection, Valvetronic and double VANOS, from the modular “Bx8” family shared with the B38 three-cylinder. Codes found: B48B20M0 and B48B20O0 (2017 2 Series Convertible, 220i and 230i), B48B20B according to ADAC (2018 F30 330i, 185 kW/252 PS), B48A20T1 (F40 M135i xDrive, 225 kW/306 hp and 450 Nm). In BMW’s naming the “A” in B48A stands for a transversely installed petrol engine. It also powers the F45 220i/225i Active Tourer.

Source : [17] [22] [25] [15] [14] [21]

Engine oil

BMW handbooks only list oils for topping up and leave the oil change to a qualified workshop; the list depends on the handbook edition. 2 Series Active Tourer F45 handbook (II/17): BMW Longlife-01, -01 FE, -04, -12 FE or -14 FE+, in SAE 0W-40, 0W-30, 5W-40 or 5W-30 (0W-20 and 5W-20 only for certain engines); otherwise up to 1 litre of ACEA A3/B4. F45 facelift handbook (VI/19): BMW Longlife-04, -12 FE or -17 FE+, in SAE 0W-20, 5W-20, 0W-30, 5W-30, 0W-40 or 5W-40; otherwise up to 1 litre of ACEA C2 or C3. 1 Series F40 handbook (II/22) / 2 Series Coupé G42 handbook (VI/22): BMW Longlife-12 FE or -17 FE+, in SAE 0W-20 or 0W-30 only; otherwise up to 1 litre of ACEA C2 or C5. Active Tourer U06 handbook (X/24): BMW Longlife-12 FE, -17 FE+ or -19 FE, in SAE 0W-20 or 0W-30; otherwise up to 1 litre of ACEA C2, C3 or C5. No additives. Quantity published by BMW: 5.25 l for the B48B20M0 and B48B20O0 (2017 2 Series Convertible) and for the B48A20T1 (F40 M135i xDrive, oil-change quantity). No quantity is sourced here for other installations.

Source : [19] [20] [16] [23] [24] [22] [15]

Timing drive

Chain, confirmed by ADAC. BMW’s Bx8 training document describes a two-part drive on the transmission side — a lower chain drives an intermediate shaft, which passes the drive to the upper camshaft chain — plus a separate chain for the oil/vacuum pump and spring-preloaded hydraulic tensioners; the inertia of the transmission reduces the loads on the chain. The sources consulted give no replacement interval.

Source : [17] [25]

What changed over the years

2014: BMW introduces the Bx8 family; its June 2014 training document describes the B46 variant of this four-cylinder (X1, 231 hp and 350 Nm, 11:1 compression). 2018: the B48B20B of the F30 330i gains a gasoline particulate filter and meets Euro 6d-TEMP (ADAC). 2019: the B48A20T1 of the M135i xDrive, presented by BMW as its most powerful four-cylinder, gets a reinforced crankshaft drive with a larger main bearing, new pistons with altered compression ratio, unbushed con rods, a larger turbocharger with integrated manifold (exhaust temperatures up to 1,025 °C) and higher-flow injectors.

Source : [17] [25] [14] [15]

Maintenance and records

Other maintenance items — petrol

As the service requirement dictates

BMW lists as regular maintenance: brake fluid, a vehicle check to BMW specifications, air filter, cabin microfilter and spark plugs. Each item is triggered by the service requirement the car calculates.

Source [1]

Questions about this version (5)

5.25 or 5.75 litres of oil?

BMW publishes both: 5.25 l on the 06/2021 and 07/2024 Gran Coupé sheets, 5.75 l on the 03/2022 430i xDrive sheet and on the 01/2024 Coupé sheet for the same engine. We cannot tell which is right for your car: the workshop can read the specified quantity for your VIN.

Source : [4] [5] [9] [7]

Is the 430i Gran Coupé available with rear-wheel drive?

It was: the launch line-up had the 430i with rear-wheel drive, and ADAC still lists it from 06/2023 to 06/2024 alongside the xDrive. Since the July 2024 update BMW only lists the 430i xDrive Gran Coupé.

Source : [4] [12] [9]

Which fuel?

The handbook specifies Super RON 95, with unleaded RON 91 as the minimum; ethanol is allowed up to 25% (E10, E25). Published output and consumption refer to RON 98 E10 (X/23 edition). Never use leaded petrol or metallic additives (manganese, iron). (These rules come from the Coupé handbook, which shares the same engines.)

Source : [10] [11]

Which recalls can apply to this version?

ADAC lists three BMW starter recalls covering this generation of the 4 Series: October 2025 (built 09/2015–09/2021), February 2026 (05/2020–10/2024) and July 2026 (07/2020–02/2026). A relay poorly protected against water, or wear deposits in it, can cause a short circuit and a fire; the starter is replaced. For cars built 01/2022–03/2022, ADAC adds a May 2022 recall: a faulty gas generator in the front seat-belt pretensioners; the belts are checked and replaced if necessary. Not every car is affected: have your VIN checked.

Source : [12]

How should a new car of this version be run in?

Up to 2,000 km, do not exceed 4,500 rpm or 160 km/h, avoid full load and kick-down and do not use Launch Control; then increase gradually. New tyres need a gentle approach for the first 300 km, the brakes for about 500 km. The same rules apply after these parts are replaced.

Source : [10]

Documentary sources

  1. [1] BMW Service Inclusive — Die Leistungen (bmw.de, archived 15/04/2026)

    BMW AG · DE · Germany · Section “Die Leistungen von BMW Service Inclusive” · Accessed 08/10/2026

  2. [2] BMW model update measures as of spring 2022

    BMW Group · EN · Europe (German base data) · pp. 1–2 (BMW 230i Coupé from March 2022: output, torque, Steptronic Sport, optional M Sport differential, WLTP) and summary table · Accessed 08/10/2026

  3. [3] BMW Media information 06/2021 — The all-new BMW 4 Series Gran Coupé (press kit, long version)

    BMW Group · EN · Europe (German base data) · p. 2 (model variants at launch), pp. 4–6 (Munich plant, market launch November 2021, dimensions, boot 470–1,290 l) · Accessed 08/10/2026

  4. [4] BMW Media information 06/2021 — Technical specifications, the all-new BMW 4 Series Gran Coupé

    BMW Group · EN · Europe (German base data) · 420i, 430i, M440i xDrive, 420d, 420d xDrive Gran Coupé: output, torque, engine oil (oil change), performance, emission rating · Accessed 08/10/2026

  5. [5] Specifications of the BMW 4 Series Gran Coupé 430i xDrive, valid from 03/2022

    BMW Group · EN · Europe (German base data) · Output, torque, engine oil (oil change), performance, emission rating · Accessed 08/10/2026

  6. [6] BMW model update measures for spring 2023 (press release)

    BMW Group · EN · Europe (German base data) · Section “BMW 4 Series and BMW M4 now with BMW Operating System 8 and BMW Curved Display” (March 2023) · Accessed 08/10/2026

  7. [7] BMW Media information 01/2024 — Technical specifications, the new BMW 4 Series Coupé

    BMW Group · EN · Europe (German base data) · 420i to M440d xDrive Coupé: output, torque, engine oil (oil change), performance, emission rating · Accessed 08/10/2026

  8. [8] BMW Media information 04/2024 — The new BMW i4 and the new BMW 4 Series Gran Coupé (long version)

    BMW Group · EN · Europe (German base data) · p. 2 (model variants), pp. 3–4 (Munich plant, market launch July 2024), pp. 18–19 (Steptronic Sport, engines, Euro 6e) · Accessed 08/10/2026

  9. [9] Technical data — BMW 4 Series Gran Coupé, valid as of July 2024

    BMW Group · EN · Europe (German base data) · 420i to 430d xDrive Gran Coupé: output, torque, engine oil (oil change), performance, emission rating · Accessed 08/10/2026

  10. [10] BMW 4er Coupé (G22) Betriebsanleitung, Sach-Nr. 01405A11254 – VI/20 (online copy)

    BMW AG (online copy: Kfz-Handbuch.de) · DE · Germany · pp. 175–176 (Servicebedarf, Service Historie), 330–331 (Einfahren, Partikelfilter), 380–382 (Kraftstoff, AdBlue), 386–390 (Motoröl, Kühlmittel), 392–393 (CBS), 415–418 (Gewichte, Anhängelasten) · Accessed 08/10/2026

  11. [11] BMW 4er Coupé (G22) Betriebsanleitung, Sach-Nr. 01405A9A824 – X/23 (online copy)

    BMW AG (online copy: Kfz-Handbuch.de) · DE · Germany · pp. 353–354 (Kraftstoffqualität), 360–361 (Motorölsorten), 362 (Kühlmittel), 365 (Condition Based Service, Standzeiten) · Accessed 08/10/2026

  12. [12] ADAC Autokatalog — BMW 430i Gran Coupé Steptronic (06/23 - 06/24)

    ADAC · DE · Germany · Technische Daten: Motorcode, Leistung, Drehmoment, Hubraum, Antriebsart, Nockenwellensteuerung, Modellstart/-ende, Schadstoffklasse; Rückrufe & Mängel · Accessed 08/10/2026

  13. [13] ADAC Autokatalog — BMW 430i Gran Coupé xDrive Steptronic (06/23 - 06/24)

    ADAC · DE · Germany · Technische Daten: Motorcode, Leistung, Drehmoment, Hubraum, Antriebsart, Nockenwellensteuerung, Modellstart/-ende, Schadstoffklasse; Rückrufe & Mängel · Accessed 08/10/2026

  14. [14] BMW Media information 05/2019 — The all-new BMW 1 Series (press kit)

    BMW Group · EN · Europe (ACEA) · PDF p. 2 (launch dates), pp. 13–14 (xDrive, limited-slip differential), pp. 16–20 (engines, transmissions) · Accessed 08/10/2026

  15. [15] BMW UK Technical data — The all-new BMW 1 Series (118i, M135i xDrive)

    BMW (UK) Ltd. · EN · United Kingdom · Basic data summary (engine description B38A15M1 / B48A20T1); Motor: “Engine oil (exchange quantity)” · Accessed 08/10/2026

  16. [16] BMW 1er (F40) Betriebsanleitung, Sach-Nr. 01405A54108 – II/22 (online copy)

    BMW AG (online copy: Kfz-Handbuch.de) · DE · Germany · p. 182 (Servicebedarf), pp. 349–357 (Kraftstoff, AdBlue, Motoröl, Kühlmittel), pp. 360–361 (Condition Based Service, Service Historie) · Accessed 08/10/2026

  17. [17] 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) · Accessed 08/10/2026

  18. [18] BMW Technical training — B58 Engine

    BMW of North America — Technical training (archive.org copy) · EN · USA · Information status April 2015 · §1.2 Modular design · §1.3 Technical data (engine oil specification) · §2.2.4 Chain drive · Accessed 08/10/2026

  19. [19] BMW 2er Active Tourer (F45) Betriebsanleitung, Sach-Nr. 01402978274 – II/17 (online copy)

    BMW AG (online copy: Kfz-Handbuch.de) · DE · Germany · p. 96 (Servicebedarf), pp. 214–215 (Kraftstoffqualität), pp. 231–234 (Motoröl), pp. 235–236 (Kühlmittel), pp. 237–238 (Condition Based Service, Service Historie) · Accessed 08/10/2026

  20. [20] BMW 2er Active Tourer (F45) Betriebsanleitung, Sach-Nr. 01402666468 – VI/19 (online copy)

    BMW AG (online copy: Kfz-Handbuch.de) · DE · Germany · pp. 140–141 (Servicebedarf), pp. 270–273 (Kraftstoff, AdBlue), pp. 295–298 (Motoröl), pp. 299–300 (Kühlmittel), pp. 301–302 (Condition Based Service, Service Historie) · Accessed 08/10/2026

  21. [21] BMW parts catalogue (ETK) — BMW 2 Series F45 Active Tourer, Europe: model and engine list

    bmwfans.info (copy of the BMW ETK parts catalogue) · EN · Europe · Model, Engine: 214d/216d B37, 216i/218i B38, 218d/220d (and xDrive) B47, 220i/225i/225i xDrive B48, 225xe B38X · Accessed 08/10/2026

  22. [22] 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)” · Accessed 08/10/2026

  23. [23] BMW 2er Coupé (G42) Betriebsanleitung, Sach-Nr. 01405A5E757 – VI/22 (online copy)

    BMW AG (online copy: Kfz-Handbuch.de) · DE · Germany · pp. 157–158 (Servicebedarf), 260–261 (Einfahren, Partikelfilter), 278 (Segeln), 311–315 (Kraftstoff, AdBlue), 316–321 (Motoröl, Kühlmittel), 322–323 (CBS, Service Historie), 326–328 (Batterie, Mild-Hybrid), 347–351 (Gewichte, Anhängelasten) · Accessed 08/10/2026

  24. [24] BMW 2er Active Tourer (U06) Betriebsanleitung, Sach-Nr. 01405B553E0 – X/24 (online copy)

    BMW AG (online copy: Kfz-Handbuch.de) · DE · Germany · pp. 170–171 (Service), 334 (Einfahren), 350–351 (Rekuperation, Segeln), 389–394 (Kraftstoff, AdBlue), 394–399 (Motoröl, Kühlmittel), 401 (CBS, Service Historie), 405–408 (Batterie, Mild-Hybrid), 412–413 (Starthilfe), 425–431 (Technische Daten) · Accessed 08/10/2026

  25. [25] ADAC — 330i Steptronic 07/2018–10/2018

    ADAC · DE · Europe / Allemagne · B48B20B, 185 kW/252 PS, filtre à particules essence ; suffixe divergent du catalogue MANN. · Accessed 08/10/2026

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