The company assembled the 1.6-liter turbocharged Mini W11B16A engine from 2001 to 2008 and put it on charged versions of the Mini in the back of R52 and R53, such as Cooper S or John Cooper Works. This power unit developed its high power thanks to the Eaton M45 compressor.
Tritec-series engines: W10B14A, W10B16A, W11B16A.
Specifications
| Production years | 2001-2008 |
| Displacement, cc | 1598 |
| Fuel system | distributed injection |
| Power output, hp | 163 – 170 (Cooper S) 210 – 218 (John Cooper Works) |
| Torque output, Nm | 210 – 220 (Cooper S) 245 – 250 (John Cooper Works) |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 77 |
| Piston stroke, mm | 85.8 |
| Compression ratio | 8.3 |
| Features | SOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | Eaton M45 |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.8 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Mini Cooper S 2003) — city — highway — combined |
11.8 6.8 8.6 |
| Engine lifespan, km | ~250 000 |
The engine was installed on:
- Mini Cabrio R52 in 2004 – 2008;
- Mini Hatch R53 in 2001 – 2006.
Disadvantages of the Mini W11B16A engine
- The biggest problems here are associated with the not very reliable compressor Eaton M45;
- Also, owners of powerful versions of the Mini Cooper regularly complain about lubricant consumption;
- The reason for the unstable operation of the engine is usually a malfunction of the electric throttle;
- By a run of about 150,000 km, the timing chain often stretches and requires replacement;
- Another weak point is the fuel pump, hydraulic booster and expansion tank.
