From 2014 to 2017, the company produced the 1.2-liter Mini One B38A12A turbo engine, which was mounted in the rear of the F55, F56, and F57 base models of the third generation Mini. The only B38 power unit not found in BMW vehicles is this one.
Engines from the B38/B48 series: B38A12A, B38A15A, B48A20A, and B48A20B.
Specifications
| Production years | 2014-2017 |
| Displacement, cc | 1198 |
| Fuel system | direct injection |
| Power output, hp | 75 (One First) 102 (One) |
| Torque output, Nm | 150 (One First) 180 (One) |
| Cylinder block | aluminum R3 |
| Block head | aluminum 12v |
| Cylinder bore, mm | 78 |
| Piston stroke, mm | 83.6 |
| 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 One First 2015) — city — highway — combined |
6.4 4.2 5.0 |
| Engine lifespan, km | ~250 000 |
The engine was installed on:
- Mini Cabrio 3 (F57) in 2016 – 2017;
- Mini Hatch F55 in 2014 – 2017;
- Mini Hatch 3 (F56) in 2014 – 2017.
Disadvantages of the Mini B38A12A engine
Soot on the valves and the unpredictable nature of direct injection are currently the primary complaints;
The thermal module, which in this case takes the place of the thermostat, is the engine’s weak point;
Vanos phase regulators and the Valvetronic system occasionally cause issues; occasionally, the large axial clearance on the crankshaft destroys the thrust bearing.