Engine Mini N14B16A

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.


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
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.

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