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:

    Engaging the transmission position
    ▷ Transmission position P can only be disengaged if the engine is running and the brake pedal is pressed. ▷ With the vehicle stationary, press on the brake pedal before shifting out ...

    Decreasing speed
    Repeatedly pull the lever to the resistance point or beyond, arrow 2, until the desired speed is displayed. ▷ Each time the lever is pulled to the resistance point, the desired speed is d ...

    Indication of a flat tire
    The yellow warning lamp lights up. A Check Control message is displayed. There is a flat tire or a major loss in tire inflation pressure. 1. Reduce your speed and stop cautiously. Avoid sudde ...