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      12-06-2010, 05:34 PM   #14
onefastman
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Drives: 2009 135i 2011 e92m dct
Join Date: Sep 2009
Location: Earth

iTrader: (15)

Its your plugs. I had the EXACT same problem and i replaced the plugs and never another problem and it idles as new. Also would be interested to see if your valve cover gasket is leaking into the plug wells impeading the coil to transmit the spark correctly as was the case with me.
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