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:

    Rear
    BMW X5 BMW X5 Unlock the center armrest with the button in the lower section of the opening and fold down. Unlock the center armrest Press the button; the cover folds forward. With 3rd row ...

    Safety
    Standard safety features include antilock brakes, side curtain airbags, active head restraints for the front seats and an electronic stability system. For a full list of safety features, visit th ...

    High-strength body structure with extremely stiff passenger cell
    The body of the new BMW 3-Series Sedan meets the highest standards across the board. Large and extremely durable supporting structures and the intelligent use of high and ultra-high-tensile multi- ...