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:

    The concept
    Personal Profile concept You can set several of your vehicle's functions to suit your personal needs and preferences. ► The settings are automatically saved in the profile currently activa ...

    Navigation bar overview
    With navigation system: the functions of the navigation bar symbols can also be stored on the programmable memory buttons. They are stored. ...

    My Info
    Starting destination guidance 1. Select the message. 2. "Start guidance" or "Add as another destination" Dialing the number in the message Up to 4 phone numbers can be transm ...