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:

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    Requirements
    ▷ A suitable mobile phone is paired with the vehicle and connected. In some mobile phones, data access must be confirmed on the mobile phone. ▷ The time, time zone, and date, refer ...

    Controls
    At a glance At a glance 1 System on/off, interrupt 2 Resume speed 3 Store speed 4 Store, maintain/change speed Switching on Press the button on the steering wheel. The marking in the spee ...