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:

    Vehicle equi
    All standard, country-specific and optional equipment that is offered in the model series is described in this chapter. Therefore, equipment is also described that is not available in a vehicle, e ...

    Switching on/off and interrupting cruise control
    Switching on Press the button on the steering wheel. The indicator lamps in the instrument cluster light up and the mark in the speedometer is set to the current speed. Cruise control can be ...

    Customer Relations
    At a glance Contact Customer Relations for information on all aspects of your vehicle. ...