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.

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    The concept
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    Safety belt reminder for the driver's and front passenger seat
    The indicator lamp lights up and a signal sounds. In addition, a message appears on the Control Display. Check whether the safety belt has been fastened correctly. The safety belt reminder i ...

    Control Display
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