Engine Mini W10B16A

The 1.6-liter gasoline engine Mini W10B16A was produced by the company from 2001 to 2008 and was installed on the first generation of Mini R50 cars, including the R52 convertible. A similar power unit was installed on some Chrysler models under its EJD index.

Tritec-series engines: W10B14A, W10B16A, W11B16A.


Production years 2001-2008
Displacement, cc 1598
Fuel system distributed injection
Power output, hp 90 (One)
116 (Cooper)
Torque output, Nm 140 (One)
150 (Cooper)
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 77
Piston stroke, mm 85.8
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 Cooper 2004)
— city
— highway
— combined
Engine lifespan, km ~300 000

The engine was installed on:

  • Mini Cabrio R52 in 2004 – 2008;
  • Mini Hatch R50 in 2001 – 2006.

Disadvantages of the Mini W10B16A engine

  • In the early years of production, power units often suffered from poor assembly;
  • Cylinder head cracks are also often found here, as well as the destruction of rocker rollers;
  • Many problems are caused by frequent failures in the operation of the electronic throttle assembly;
  • Closer to 150 – 200 thousand kilometers, the timing chain usually stretches and requires replacement;
  • The weak points of the engine include the fuel pump, hydraulic booster and expansion tank.

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