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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    Supplementary text messages
    Addition information, such as on the cause of a fault or the required action, can be called up via Check Control. The supplementary text of urgent messages is displayed automatically. It is sh ...

    Front lamps, bulb replacement
    At a glance 1 Adaptive light control 2 Parking lamp, daytime running lights* 3 Low beams/high beams 4 Turn signal Xenon lamps Because of the long life of these bulbs, the likelihood of failu ...

    Connecting electrical devices
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