Engine Mini B38A15A

The 1.5-liter Mini Cooper B38A15A turbo engine has been assembled at the company’s factory since 2014 and is installed on all third-generation Mini models, but only in basic versions. This 3-cylinder engine was essentially one of the varieties of the BMW B38 series units.

B38/B48-series engines: B38A12A, B38A15A, B48A20A, B48A20B.


Production years since 2014
Displacement, cc 1499
Fuel system direct injection
Power output, hp 75 (One First)
102 (One)
136 (Cooper)
Torque output, Nm 160 (One First)
190 (One)
220 (Cooper)
Cylinder block aluminum R3
Block head aluminum 12v
Cylinder bore, mm 82
Piston stroke, mm 94.6
Compression ratio 11.0
Features Valvetronic
Hydraulic lifters yes
Timing drive chain
Phase regulator on both shafts
Turbocharging Continental 7633795
Recommended engine oil 5W-30
Engine oil capacity, liter 4.25
Fuel type petrol
Euro standards EURO 6
Fuel consumption, L/100 km (for Mini Cooper 2018)
— city
— highway
— combined
Engine lifespan, km ~270 000

The engine was installed on:

  • Mini Cabrio 3 (F57) since 2016;
  • Mini Clubman 2 (F54) since 2015;
  • Mini Countryman 2 (F60) since 2017;
  • Mini Hatch F55 since 2014;
  • Mini Hatch 3 (F56) since 2014.

Disadvantages of the Mini B38A15A engine

  • So far, most of the complaints are related to direct injection failures and valve deposits;
  • The weak point of this motor is the thermal module, which is instead of a thermostat;
  • The Valvetronic system, as well as the Vanos phase regulators, regularly throws up problems;
  • Sometimes there is a destruction of the thrust bearing due to axial play of the crankshaft.

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