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      12-06-2012, 08:34 AM   #7
MilehighM3
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Drives: E90 M3
Join Date: May 2011
Location: Colorado Springs

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Clean it well and run the engine while watching the area of the leak to see where it is coming from. A lot of valve covers develop cracks by cylinder #2 from the inside out. Right where the front edge of the crankcase vent valve is. The valve covers aren't that difficult, but you don't want to do it twice of you don't have to.