BMW B48

BMW B48
Overview
Manufacturer BMW
Production 2014 – present
Layout
Configuration Inline-four
Displacement 2.0 L (1,998 cc)
Cylinder bore 82.0 mm
Piston stroke 94.6 mm
Valvetrain DOHC
Compression ratio 11:1
Combustion
Turbocharger Single twin-scroll
Fuel system Direct injection
Fuel type Petrol
Chronology
Predecessor BMW N20
B48 in a 2014 MINI Cooper S

The BMW B48 is a turbocharged inline-four petrol engine which replaced the BMW N20 and has been in production since 2014. It is part of a modular BMW engine family of 3-cylinder (B38/ B37), 4-cylinder (B48/ B47) and 6-cylinder (B58) engines,[1] which use a displacement of 500 cc (30.5 cu in) per cylinder.

Design

Compared with its N20 predecessor, the B48 uses a more undersquare design.[2] As per the N20, the block and head are made from aluminium.[3] Other features shared with the N20 include a twin-scroll turbocharger, direct injection, variable valve lift (Valvetronic) and variable valve timing (Double VANOS).[4]

Models

PowerTorqueYears
135 kW (181 hp)
@ 5,000–6,500 rpm		290 N⋅m (214 lb⋅ft)
@ 1,350–4,250 rpm		2016–
141 kW (189 hp)
@ 4,700–6,000 rpm		280 N⋅m (207 lb⋅ft)
@ 1,250–4,500 rpm		2014–
170 kW (228 hp)
@ 5,000–6,500 rpm		300 N⋅m (221 lb⋅ft)
@ 1,250–4,800 rpm		2015–
185 kW (248 hp)
@ 5,200–6,500 rpm		350 N⋅m (258 lb⋅ft)
@ 1,450–4,800 rpm
190 kW (255 hp)
@ 5,000–6,500 rpm		400 N⋅m (295 lb⋅ft)
@ 1,550–4,400 rpm		2016–

135 kW version

When combined with the electric motor, the 330e overall output is 185 kW (248 hp) and 420 N⋅m (310 lb⋅ft)[5]

Applications:

  • 2016–present F30 320i
  • 2016–present F30 330e
  • 2016–present F20 120i
  • 2017–present G30 520i
  • 2017–present G30 530e
  • 2018–present G01 X3 xDrive20i
  • 2019–present G20 320i

141 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).[6]

Applications:

  • 2014–present F56 MINI Cooper S[7]
  • 2015–present F22 220i
  • 2016–present F48 X1 20i
  • 2017–present F39 X2 sDrive20i
  • 2018–present G29 Z4 sDrive20i

170 kW version

  • 2014–present F56 MINI JCW Hardtop and JCW Cabrio (320 Nm)[8]
  • 2017–present F56 MINI JCW Clubman and JCW Countryman ALL4 (350 Nm)
  • 2015–present F22 225i
  • 2016–present F48 X1 25i
  • 2017–present F39 X2 sDrive28i

185 kW version

  • 2015–present F30/F31 330i
  • 2016–present G30 530i
  • 2016–present F22 230i[9]
  • 2016–present F32/F33/F36 430i
  • 2018–present G01 X3 xDrive30i
  • 2018–present X4 xDrive30i
  • 2018–present G29 Z4 sDrive30i

190 kW version

  • 2016–present G11 730i/730Li
  • 2017–present G11 740e xDrive/740Le xDrive[10] (combined with 82 kW electric motor for total output of 240 kW)
  • 2017–present G32 630i
  • 2019–present G20 330i

References

  1. ↑ "BMW modular engines: B37, B38, B47 and B48". www.bmwblog.com. Retrieved 10 May 2017.
  2. ↑ "Watch out for the B's - Comparing the upcoming B48 2.0 liter turbo four-cylinder to the N20 it will replace". www.bimmerboost.com. Retrieved 10 May 2017.
  3. ↑ "2016 BMW X1 first drive review". www.caranddriver.com. Retrieved 10 May 2017.
  4. ↑ "BMW B48 Four Cylinder Turbocharged Engines". www.unixnerd.demon.co.uk. Retrieved 16 May 2017.
  5. ↑ http://www.bmw.com/com/en/newvehicles/3series/sedan/2015/showroom/technical_data.html#m=330e
  6. ↑ "BMW's new B48 2.0 litre four-cylinder TwinPower Turbo engine to produce up to 255 hp and 400 Nm". www.paultan.org. Retrieved 16 May 2017.
  7. ↑ "MINI's Prince Engine is Dead- enter the B37 & B48". www.motoringfile.com. Retrieved 16 May 2017.
  8. ↑ http://www.autocar.co.uk/car-news/new-cars/future-mini-jcw-models-get-new-230bhp-petrol-engine
  9. ↑ "The new 2017 BMW 2 Series now featuring the latest generation of BMW TwinPower Turbo engines". Press.bmwgroup.com. 2017-05-17. Retrieved 2017-09-01.
  10. ↑ "2017 BMW 740e xDrive Plug-In Hybrid". www.caranddriver.com. Retrieved 31 July 2017.
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