Basic Specifications

• Engine Code: B38A15

• Displacement: 1499 cc (1.5 liters)

• Cylinders: 3-cylinder inline

• Aspiration: Turbocharged (TwinPower Turbo)

• Valve Train: DOHC, 4 valves per cylinder

• Bore x Stroke: 82.0 mm × 94.6 mm

• Compression Ratio: 11.0:1 (varies slightly by model)

• Fuel System: Direct injection

• Maximum Power: approx. 75–103 kW (100–140 hp), depending on tuning

• Maximum Torque: approx. 160–220 Nm

Key Technologies

BMW TwinPower Turbo: Single twin-scroll turbocharger

VANOS: Variable camshaft timing

Valvetronic: Variable valve lift control

Modular design: Shares architecture with B48 (4-cylinder) and B58 (6-cylinder) engines

Emission Standard: Euro 6 compliant

Common Applications

• BMW 1 Series (F20/F21)

• BMW 2 Series Active Tourer (F45)

• BMW X1 (F48)

• MINI Cooper (F55/F56)

• BMW i8 (paired with electric motor in PHEV system)