G42 · 2022–…
Added in March 2022, the 230i is the most powerful four-cylinder in the range: 180 kW and 400 Nm, with the Steptronic Sport transmission as standard. Watch the oil change: BMW published 5.75 l in 2022 and then 5.25 l in 2024 for the same engine. Have the quantity confirmed for your VIN.
Figures apply to the cited configuration and market; equipment and transmissions may vary by production date.
Specification source : [4] BMW Group [5] BMW Group [7] BMW Group
1,998 cc four-cylinder petrol turbo (ADAC engine code B48B20B): 180 kW (245 hp) between 4,500 and 6,500 rpm and 400 Nm between 1,600 and 4,000 rpm. As on the 220i, the exhaust manifold is integrated into the cylinder head, with an advanced turbocharging system according to BMW. Eight-speed Steptronic Sport transmission as standard, with paddles and Launch Control; M Sport differential optional. Rear-wheel drive. BMW quotes 5.9 s for 0–100 km/h and 250 km/h; WLTP combined 7.2–6.5 l/100 km (163–149 g/km) under Euro 6d on the 03/2022 sheet, then 7.1–6.6 l/100 km (162–150 g/km) under Euro 6e on the 06/2024 sheet. Timing chain according to ADAC.
Oil change: BMW’s two sheets disagree — 5.75 l on the 03/2022 sheet, 5.25 l on the 06/2024 sheet, for the same engine code according to ADAC. Have the quantity confirmed for your VIN and finish with the electronic level measurement. For top-ups, the G42 handbook (VI/22) lists BMW Longlife-12 FE or Longlife-17 FE+, SAE 0W-20 or 0W-30 (if unavailable, up to 1 litre of ACEA C2 or C5), with no additives. The level is measured electronically: it is monitored while driving (a value is available after about 30 minutes of normal driving), and a detailed measurement is started with the car level, engine warm and selector in N or P, under MENU › Vehicle apps › Vehicle status › Engine oil level › Oil level measurement › Start measurement. The handbook advises running it after every refuelling. Only add oil when the car asks for it, in the quantity given in the message.
The car calculates each due date from how it is used (Condition Based Service) and briefly shows the next date or remaining distance after switching on; details, including statutory inspections, are under MENU › Vehicle apps › Vehicle status › Service requirements, and completed work under Service History. BMW’s regular maintenance covers engine oil, brake fluid, a vehicle check, air filter, cabin microfilter and spark plugs. Brake fluid and, where applicable, oil and microfilter also depend on time; periods with the battery disconnected are not counted, so have the workshop update them. Neither the handbook nor BMW’s list sets a mileage or period.
Check the first-registration date and the power on the registration document (180 kW). Note the items and dates shown under MENU › Vehicle apps › Vehicle status › Service requirements. Give the service advisor the key the car was last driven with: the car stores its service data in it. Ask the workshop to confirm the oil quantity for your VIN (BMW has published 5.75 l and 5.25 l) and to use a BMW-approved oil. Have the VIN checked against the starter recalls listed by ADAC, then check that the work is entered in the electronic Service History, which a later owner can also view.
Due date calculated by CBS
Oil change at the date the car displays; do not run past it. Top-up, up to 1 litre: BMW Longlife-12 FE or Longlife-17 FE+, SAE 0W-20 or 0W-30, for petrol and diesel alike. If unavailable, up to 1 litre of ACEA C2 or C5. No additives. Only add the quantity the car’s message asks for.
Source [8]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]Calendar-based (CBS)
Brake fluid and, where applicable, engine oil and the microfilter/activated-carbon filter also depend on time. The G42 handbook states that periods with the battery disconnected are not taken into account: have the workshop update these items. The handbook gives no period.
Source [8]Regular check, engine cold
Level correct just below the Max mark in the expansion tank filler neck, engine cold. BMW recommends coolant to BMW LC-18, mixed 50:50 with water; do not mix additives of different colours. At delivery the tank may be overfilled: the normal level settles with use.
Source [8]BMW has published both: 5.75 l on the 03/2022 sheet and 5.25 l on the 06/2024 sheet. Output, torque and ADAC engine code (B48B20B) are the same on both dates, and we found no BMW document explaining the difference. Rather than pouring a fixed quantity, have the workshop look up the figure for your VIN and check the result with the detailed electronic measurement; never overfill, as excess oil can damage the engine or the catalytic converter.
ADAC lists B48B20B for the 230i and B48B20A for the 218i and 220i. All three displace 1,998 cc; the 230i delivers 180 kW and 400 Nm, against 135 kW and 300 Nm for the 220i. Quote the code or the VIN when ordering engine parts.
The standard Steptronic Sport transmission has paddles and Launch Control, for a standing start with maximum traction. With the Sprint function, pulling the left paddle for at least one second shifts down to the lowest possible gear and switches the drive and chassis systems to SPORT.
The handbook specifies Super RON 95, with unleaded RON 91 as the minimum. Ethanol is allowed up to 25% (E10, E25). On RON 91 or with more than 10% ethanol, knocking and noticeable changes in driving behaviour and noise are possible, with no effect on engine life according to BMW. Published output and consumption refer to RON 98 E10. Never use leaded petrol or metallic additives (manganese, iron).
Source : [8]
ADAC lists two BMW starter recalls covering its production period: February 2026 for cars built 05/2020–10/2024 and July 2026 for cars built 07/2020–02/2026. Wear deposits in the starter relay can raise contact resistance and cause a short circuit, with a fire risk; the starter is replaced. Not every car is affected: have your VIN checked.
BMW AG · DE · Germany · Section “Die Leistungen von BMW Service Inclusive” · Accessed 08/10/2026
BMW Group · EN · Europe (German base data) · Sections on the BMW 1 Series (standard equipment, tyre repair kit, BMW Digital Key) and M135 xDrive consumption (WLTP) · Accessed 08/10/2026
BMW Group · EN · Europe (German base data) · p. 2 (model variants at launch), pp. 4–5 (market launch early 2022, production in San Luis Potosí), pp. 6–7 (dimensions and luggage compartment vs predecessor), pp. 18–21 (engines, eight-speed Steptronic, BMW xDrive, M Sport differential) · Accessed 08/10/2026
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
BMW Group · EN · Europe (ACEA) · pp. 1–2; “Engine oil”, footnote 1) “Oil change”; consumption WLTP combined · Accessed 08/10/2026
BMW Group · EN · Europe (German base data) · p. 1 (market launch August 2024, production in San Luis Potosí), pp. 1–2 (M Sport Package standard), pp. 5–6 (engines, Steptronic Sport, M Sport suspension), p. 8 (M Technology Package for the M240i) · Accessed 08/10/2026
BMW Group · EN · Europe (ACEA) · pp. 1–10; “Engine oil”, footnote 1) “Oil change volume”; consumption WLTP combined; emission rating Euro 6e · Accessed 08/10/2026
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
ADAC · DE · Germany · Technische Daten: Motorcode, Leistung, Drehmoment, Hubraum, Nockenwellensteuerung, Modellstart/-ende, Schadstoffklasse; Rückrufe & Mängel · Accessed 08/10/2026
ADAC · DE · Germany · Technische Daten: Motorcode, Leistung, Drehmoment, Hubraum, Nockenwellensteuerung, Modellstart/-ende, Schadstoffklasse; Rückrufe & Mängel · Accessed 08/10/2026
ADAC · DE · Germany · Technische Daten: Motorcode, Leistung, Drehmoment, Hubraum, Nockenwellensteuerung, Modellstart/-ende, Schadstoffklasse; Rückrufe & Mängel · Accessed 08/10/2026