The Mini Cooper S B48A20A 2.0-liter turbo engine has been assembled at the concern’s plant since 2014 and is installed on third-generation Mini cars from the Clubman F54 to the Countryman F60. The modification of this unit for the US market under the environmental standards ULEV II has its own index B46A20A.
B38/B48-series engines: B38A12A, B38A15A, B48A20A, B48A20B.
Specifications
| Production years | since 2014 |
| Displacement, cc | 1998 |
| Fuel system | direct injection |
| Power output, hp | 192 |
| Torque output, Nm | 280 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 82 |
| Piston stroke, mm | 94.6 |
| Compression ratio | 11.0 |
| Features | Valvetronic |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | at intake and exhaust |
| Turbocharging | MHI TD04LR6W |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.0 |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Mini Cooper S 2017) — city — highway — combined |
7.9 4.9 6.0 |
| Engine lifespan, km | ~250 000 |
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 B48A20A engine
- In engines until 2017, timing chains quickly stretched, but then the design changed;
- Quite often, idle speed floats due to a failure of the tank ventilation valve;
- After 100,000 km, valve stem seals usually tan and oil consumption appears;
- At high mileage, failures of the Valvetronic system and Vanos phase regulators occur.
