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:

    Check Control
    The conceptThe Check Control monitors vehicle functions and alerts you to any malfunctions in the systems monitored. Such a Check Control message includes indicator and warning lamps in the instru ...

    Equalizer
    Setting for individual audio frequency ranges. Adjusting the equalizer 1. "CD/Multimedia", "Radio" or "Settings" 2. "Tone" 3. "Equalizer" 4. Sele ...

    Destination guidance with traffic bulletins
    Semi-dynamic destination guidance When traffic bulletin reception is switched on, semi-dynamic destination guidance is active. The destination guidance system takes the available traffic informa ...