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Whine on cold start.

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by Cyrix, Oct 10, 2013.

  1. Cyrix
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    Cyrix Member

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    [Oct 10, 2013]
    I have a 2007 PD170 Quattro that makes a whine on cold start for maybe 1/2mins then stops.

    The noise itself doesn't fluctuate with engine RPM, I did wonder if it could be the clutch release bearing but it doesnt change in pitch when the clutch is depressed so doubt it.

    I just replaced the EGR cooler that has been cracked at the exhaust manifold end for a while, I assumed the noise was maybe related to that but it's not.

    Ideas?
    #1
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  3. Paul B7
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    Paul B7 Active Member

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    [Oct 10, 2013]
    No ideas but mine has been the same since the EGR valve was replaced !
    #2
  4. ruairi83
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    ruairi83 Active Member

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    [Oct 10, 2013]
    Could be your air con pulley mate. Once warmed up it stops. My car did the same and that's what it was.
    #3

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