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      05-04-2013, 07:37 PM   #18
urbanstorm
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Drives: 2011 BMW 1M
Join Date: Aug 2012
Location: St. John's, NL

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I have heard mine do this before as well.

Engine at operating temp.
Idling with HVAC/Seats/Radio off

A blip of the throttle, it will go away and come back.

You are not alone.

Robert