BMW TwinPower Turbo diesel engines.
BMW TwinPower Turbo technology combines innovative turbocharger technology with the latest generation of common rail direct injection and variable turbine geometry. All with one goal in mind: maximum convertible driving pleasure.
The BMW TwinPower Turbo 4-cylinder diesel engine in the BMW 420d unleashes a powerful 135 kW (184 hp). With up to 380 Nm of torque, the vehicle accelerates to 100 km/h from a standing start in 8.2 seconds (Steptronic transmission: 8.2 s) and reaches a top speed of 235 km/h (Steptronic transmission: 228 km/h). At the same time, the efficient average fuel consumption is only 5.3 to 5.1 l (Steptronic transmission: 5.0 to 4.8 l) over 100 km with CO2 emissions of 138 to 133 g/km (Steptronic transmission: 131 to 127 g/km).
All engines in the BMW 4 Series Convertible fulfil the EU6 emission norm as standard.