Twin-scroll turbocharging

BMW 3 Series / Overview / Twin-scroll turbocharging

The new four-cylinder engines also feature twin-scroll turbocharging. This means that the exhaust stream from cylinders 1 and 4, and the exhaust stream from cylinders 2 and 3, follow separate spiral-shaped paths to the turbine wheel. This reduces exhaust back-pressure at low engine rpm, allowing the energy of the exhaust gas pulses to be utilised as efficiently as possible. The result is instant throttle response and fast-revving performance which BMW drivers can instantly translate into driving pleasure.

    See also:

    Storage periods
    Storage periods during which the vehicle battery was disconnected are not taken into account. If this occurs, have a service center update the time-dependent maintenance procedures, such as che ...

    Rear door controls
    Roller blind for the side windows Press the button. The roller blind can only be extended or retracted when the side window is closed. Roller blind for rear window Press the button. Raising ...

    Current fuel consumption
    Instrument cluster Displays the current fuel consumption. You can check whether you are currently driving in an efficient and environmentally- friendly manner. Instrument cluster with enhan ...