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Thread: Passat 125 TDI white noise at idel and "half ignition"

  1. 19-07-2010, 09:53 PM #1
    mebius9
    mebius9 is offline Volkswagen Fan
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    Passat 125 TDI white noise at idel and "half ignition"

    I'm hearing this "white noise" or faint whine/beep/hum when ever I put the car in "half ignition"
    (state before the actual ignition) and at idle...

    It sounds like some sort of small high speed motor operating...

    Anyone else experiencing this?
    Last edited by mebius9; 19-07-2010 at 10:01 PM.
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  2. 19-07-2010, 10:12 PM #2
    mebius9
    mebius9 is offline Volkswagen Fan
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    I did some googling and found some bloke suggesting that it is secondary water-pump that circulates coolant around the engine after shutoff
    Is this right?
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