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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    At a glance
    These overviews of buttons, switches and displays are intended to familiarize you with your vehicle. You will also become quickly acquainted with the available control concepts and options. ...

    Switching on/off directly
    1. "Settings" 2. "Climate" 3. "Activate parked-car vent." Switching on/off directly The symbol on the automatic climate control flashes if the system is switc ...

    Settings and information
    Operating principle 1.  Button for: > Selecting display > Setting values 2.  Button for: > Confirming selected display or set values > Calling up computer information 3. ...