The BMW B38 is a 1.5-litre DOHC 3 cylinder gasoline engine with the world’s first aluminium, water-cooled integrated exhaust manifold turbine housing. The engine is part of the BMW modular engine strategy for gasoline and diesel engines, all using same bore spacing, sharing up to 40% of its architecture with the 1.5-litre B37 diesel engine.
This variant of the B38 engine is the ‘Twin Power’ B38A15A, installed in the 2014 model year MINI Cooper Mark 3, and has a maximum power of 100kW (136hp) at 4500-6000rpm and a maximum torque of 220Nm at 1250 –4000 rpm.
Main engine features include:
- High precision direct injection,
- All-alloy construction
- High compression ratio of 11:1,
- BMW Valvetronic®,
- Gear driven balance shaft,
- Rear timing chain drive system,