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High pitched noise when starting from cold

Discussion in 'A6/S6/Allroad forum (C5 Chassis)' started by ajek, Oct 25, 2004.

  1. ajek
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    ajek New Member

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    [Oct 25, 2004]
    Hi all,

    When starting my A6 2.7T from cold it produces a constant pitched noise for about a minute or so and sounds quite nice. I assumed it was something to do with the turbos or something warming up. I recently (about a week ago) started the engine and got the same noise but a hell of lot higher in pitch. Again it went away after a minute or so. It has not happened since.

    Does any one know what this noise is?


    Regards

    ajek.
    #1
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  3. s3bow
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    s3bow Member

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    [Oct 25, 2004]
    Hi mate,had a similar sounding problem with an S3 a year or so ago. It was the auxillary air fan or the air con fan I believe. High pitched and lasted for a minute or so. Qiute expensive too if not covered on the warranty. Hope this helps.
    Regards, s3bow.
    #2
  4. ajek
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    ajek New Member

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    [Nov 13, 2004]
    Thanks for the reply. Don't get get time to log on much but thanks.
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