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:

    Visual warning
    The approach to an object can be shown on the Control Display. When the distance to an object is small, the PDC display correspondingly shows a red bar in front of the vehicle. The display a ...

    Avoiding unintentional alarms
    The tilt alarm sensor and interior motion sensor can be switched off together, such as in the following situations: ► In automatic car washes. ► In duplex garages. ► During tran ...

    Information at a glance
    Repeatedly pressing the button on the turn signal lever calls up the following information on the info display: ▷ Range. ▷ Average fuel consumption. ▷ Average speed. ▷ ...