BMW B48
The BMW B48 is a turbocharged inline-four petrol engine which replaced the BMW N20 and has been in production since 2014. It was first used in the F56 Mini Hatch and has been used in BMW applications since 2015.
The B48 is part of a modular BMW engine family of 3-cylinder, 4-cylinder and 6-cylinder engines, which use a displacement of per cylinder.
A SULEV version of the BMW B48, the B46, is sold in the United States and other regions with strict emissions standards. Outside of minor differences, primarily with emissions control hardware, the two lines of engines are essentially identical and feature similar performance and reliability.
Design
Compared with its N20 predecessor, the B48 uses a more undersquare design, and an engine block using "closed-deck construction". As with the N20, the block and head are made from aluminium. Other features shared with the N20 include a twin-scroll turbocharger, direct injection, variable valve lift and variable valve timing.Technical Update versions
The B48 engine was revised in 2018, dubbed "B48TU", with notable changes and improvements; a new one-part timing chain as opposed to the earlier two-part, a new separate cooling circuits for the cylinder head and crankcase, and forged conrods and forged crankshaft is now lighter due to the use of lighter materials and different machining. The fuel system also upgraded with the new Bosch HDP6 high pressure fuel pump and Bosch HDEV6 injectors that borrows from the P48 Turbo Engine.Models
115 kW version
- 2020–present G20 318i
- 2022–present G42 218i
125 kW version
- 2019–present G20 320i
- 2020–present G22 420i
- 2021–present G26 420i
- 2017–present G30 520i
- 2018–present G01 X3 sdrive20i
131 kW version
- 2021–present F54 MINI Cooper S Clubman
- 2020–2024 F40 BMW 120i
135 kW version
- 2016–2019 F20 120i
- 2016–2019 F22/F23 220i
- 2015–2019 F30/F31/F34 320i
- 2016–2019 F30 330e
- 2016–2019 F32/F33/F36 420i
- 2017–present G30/G31 520i
- 2018–present G30/G31 530e
- 2018–present G01 X3 xDrive20i
- 2018–present G02 X4 xDrive20i
- 2019–present G20 320i
- 2019–present G20 330e
- 2020–present G22 420i
- 2021–present G42 220i
141 kW version
- 2017–2020 F60 MINI Cooper S Countryman
- 2014–2017 F45 BMW 2 Series Active/Gran Tourer 220
- 2024–present G45 X3 20/30e xDrive
145 kW version
- 2014–present F56 MINI Cooper S
- 2020–present F44 220i Gran Coupe
- 2016–present F48 X1 20i
- 2017–present F39 X2 sDrive20i
- 2018–present G29 Z4 sDrive20i
- 2019–present J29/DB82 Toyota Supra
150 kW version
- 2024-present F70 120
165 kW version
- 2016–2019 F20 125i
- 2021–present U06 223i
170 kW version
- 2014–present F56 MINI JCW Hardtop and JCW Cabrio
- 2017–present F56 MINI JCW Clubman and JCW Countryman ALL4
- 2015–present F45 Active Tourer 225i
- 2016–present F48 X1 25i/28i
- 2017–present F39 X2 25i/28i
- 2019–current F44 228i Gran Coupé xDrive
180 kW version
- 2022–present G42 230i
- 2022–present G20/G21 330i
- 2022–present G22 430i
- 2023–present U11 X1 28i xDrive
185 kW version
- 2015–2019 F30/F31/F34 330i
- 2016–present F22/F23 230i
- 2016–present F32/F33/F36 430i
- 2018–present G01 X3 xDrive30i
- 2018–present G02 X4 xDrive30i
- 2020–present G01 X3 xDrive30e
- 2016–present G30/G31 530i
190 kW version
- 2016–present G11 730i/730Li
- 2017–2019 G11 740e xDrive/740Le xDrive
- 2017–2021 G32 630i
- 2019–2022 G20/G21 330i
- 2019–present G29 Z4 sDrive30i
- 2019–present J29/DB22 Toyota Supra
- 2020–present Morgan Plus Four
- 2020–present G22/G23/G26 430i
195 kW version
- 2020–2024 BMW F40 128ti
225 kW version
- 2019–2024 F40 M135i xDrive
- 2019–2024 F44 M235i xDrive Gran Coupé
- 2019–2023 F39 X2 M35i xDrive
- 2019–present F54 Clubman JCW
- 2019–present F60 Countryman JCW
- 2020–present F56 MINI John Cooper Works GP
233 kW version