Odd sound when opening drivers door???

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Aug 9, 2009 | 03:50 PM
  #1  
I have heard this on both my A4 and on a loaner A3. When I open the driver's door I hear some mechanical whirring sound coming from what sounds like somewhere in the engine compartment. Any clues as to what this is?
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Aug 9, 2009 | 05:36 PM
  #2  
That is the electric fuel pump bringing the fuel pressure up. Happens on all Audis and VWs.
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