From 2001 to 2008, the company assembled the 1.6-liter turbocharged Mini W11B16A engine and installed it in the rear of R52 and R53 models, such as the Cooper S or John Cooper Works. The Eaton M45 compressor helped this power unit achieve its high power.
Engines from the Tritec series: W10B14A, W10B16A, and 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 most significant issues here are related to the unreliable Eaton M45 compressor;
Additionally, owners of powerful Mini Cooper models frequently express dissatisfaction regarding lubricant consumption;
An electric throttle malfunction is typically the cause of the engine’s unstable operation;
The timing chain frequently stretches after a run of roughly 150,000 km and needs to be replaced;
The expansion tank, hydraulic booster, and fuel pump are additional weak points.