The Mini Cooper S N14B16A 1.6-liter turbo engine was produced in England from 2006 to 2010 and was installed on the R56 Hatch, R57 Cabrio and R55 Clubman station wagon. The same power unit was installed on Peugeot and Citroen cars under its EP6DTS index.
Prince-series engines: N12B14A, N12B16A, N16B16A, N14B16A, N14B16C, N18B16A, N18B16C.
Specifications
| Production years | 2006-2010 |
| Displacement, cc | 1598 |
| Fuel system | direct injection |
| Power output, hp | 174 |
| Torque output, Nm | 240 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 77 |
| Piston stroke, mm | 85.8 |
| Compression ratio | 10.5 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | at the exhaust |
| Turbocharging | BorgWarner K03 |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.2 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Mini Cooper S 2008) — city — highway — combined |
8.9 5.7 6.9 |
| Engine lifespan, km | ~200 000 |
The engine was installed on:
- Mini Cabrio R57 in 2009 – 2010;
- Mini Clubman R55 in 2007 – 2010;
- Mini Hatch R56 in 2006 – 2010.
Disadvantages of the Mini N14B16A engine
- The most problematic here is the capricious direct fuel injection system;
- In second place is a large consumption of lubrication and increased coking in the intake;
- The timing chain has a modest resource here, often it runs less than 50,000 km;
- The vacuum pump is not very reliable, as well as the Vanos phase regulator;
- Another weak point of the engine is the thermostat, water pump and lambda probes.
