ⓘ 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 ..


ⓘ 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 B38/ B37, 4-cylinder B48/ B47 and 6-cylinder B58 engines, which use a displacement of 500 cc 30.5 cu in per cylinder.


1. Design

Compared with its N20 predecessor, the B48 uses a more undersquare design. As per 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 Valvetronic and variable valve timing Double VANOS.


2.1. Models 135 kW version

When combined with the electric motor, the 330e and 530e overall output is 185 kW 248 hp and 420 N⋅m 310 lb⋅ft


  • 2016-present F33|F36 420i
  • 2015–2019 F30/F31/F34 320i
  • 2016–2018 F30 330e
  • 2016–2019 F20 120i
  • 2018–present G01 X3 xDrive20i
  • 2017–present G30 530e
  • 2019–present G20 320i
  • 2018–present G02 X4 xDrive20i
  • 2019–present G20 330e

2.2. Models 144 kW version

In the MINI Cooper S, a temporary overboost increases peak torque by 20 N⋅m 15 lb⋅ft to 300 N⋅m 221 lb⋅ft.


  • 2017–present F39 X2 sDrive20i
  • 2016–present F48 X1 20i
  • 2014–present F56 MINI Cooper S B48A20A
  • 2015–present F22 220i
  • 2018–present G29 Z4 sDrive20i

2.3. Models 170 kW version

  • 2016–present F48 X1 25i/28i
  • 2019–current F44 228i Gran Coupe xDrive
  • 2017–present F39 X2 25i/28i
  • 2015–present F22 225i
  • 2017–present F56 MINI JCW Clubman and JCW Countryman ALL4 350 Nm
  • 2014–present F56 MINI JCW Hardtop and JCW Cabrio 320 Nm

2.4. Models 185 kW version

  • 2015–2019 F31 330i
  • 2016–present G30 530i
  • 2015–2018 F30 330i
  • 2018–present G01 X3 xDrive30i
  • 2020–present G01 X3 xDrive30e PHEV Version
  • 2016–present F22 230i
  • 2018–present G02 X4 xDrive30i
  • 2016–present F32/F33/F36 430i

2.5. Models 190 kW version

  • 2020-present Morgan Plus Four
  • 2019–present G20 330i
  • 2019-present G29 Z4 Sdrive30i
  • 2019–present J29 Toyota Supra Japanese SZ-R models
  • 2017–2019 G11 740e xDrive/740Le xDrive combined with 82 kW electric motor for total output of 240 kW
  • 2017–present G32 630i
  • 2016–present G11 730i/730Li

2.6. Models 225 kW version

This engine features a reinforced crankshaft with larger main bearings and new pistons with a lower 9.5:1 compression ratio. This allows the engine to take more boost pressure from a larger turbocharger, which blows compressed air through a reworked intake tract. Revealed in May 2019, this engine is shared with the new MINI Countryman,Clubman JCW and MINI JCW GP models. Increasing from previous outputs by as much as 55kw/75hp and 100nm to 450nm.

  • 2019–present F60 Countryman JCW
  • 2019–present F40 M135i xDrive
  • 2019–present F44 M235i xDrive Gran Coupe
  • 2019–present F54 Clubman JCW
  • 2020–present F56 MINI John Cooper Works GP
  • 2019–present F39 X2 M35i