Engine Mini W10B14A

The 1.4-liter gasoline engine Mini W10B14A was assembled by the company from 2001 to 2006 and installed on the first generation of the Mini R50 hatchback in its most basic One modification. The motor was offered only in a number of European countries with tax incentives for small engines.

Tritec-series engines: W10B14A, W10B16A, W11B16A.


Production years 2001-2006
Displacement, cc 1397
Fuel system distributed injection
Power output, hp 75
Torque output, Nm 122
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 77
Piston stroke, mm 75
Compression ratio 10.5
Features SOHC
Hydraulic lifters yes
Timing drive chain
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 4.5
Fuel type petrol
Euro standards EURO 4
Fuel consumption, L/100 km (for Mini One 2003)
— city
— highway
— combined
Engine lifespan, km ~280 000

The engine was installed on:

  • Mini Hatch R50 in 2001 – 2006.

Disadvantages of the Mini W10B14A engine

  • In the early years of production, engines often suffered from poor build quality;
  • Also, cracks in the cylinder head are often found here, as well as the destruction of rocker rollers;
  • A lot of the problems of this motor are associated with the vagaries of the electronic throttle assembly;
  • The timing chain usually stretches for about 150 – 200 thousand km, however, replacement is inexpensive;
  • The weak points of the engine include hydraulic booster, fuel pump and expansion tank.

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