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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    Front ventilation
    ▷ Thumbwheels for adjusting the temperature, arrows 1. Toward blue: colder. Toward red: warmer. ▷ Lever for changing the air flow direction, arrow 2. ▷ Thumbwheels for open ...

    The concept
    The central locking system becomes active when the driver's door is closed. The system simultaneously engages and releases the locks on the following: ▷ Doors. ▷ Trunk lid. ▷ ...

    Using this Owner's Manual
    The fastest way to find information on a particular topic is by using the index. An initial overview of the vehicle is provided in the first chapter. Updates made after the editorial deadline ...