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whirring or humming

  1. Alfa 159, Brera & 946 Spider
    Hi, i asked elsewhere but took over someone elses thread so thought i wouls start a new one and upload a video of the noise. Its not very clear but if you turn it up loud, you can deffinatly hear it. It is a whirring/humming noise when idling. As soon as i depress accelerator, it goes, when i...