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      02-14-2013, 01:56 AM   #31
tmo335tt
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Drives: E90 2008 335i
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Kind of sounds like a lifter that is not being pumped up all the way. You could always try the bleed procedure. The N54 has the same lifters that are used in the n52 and they fail all the time, although its hard to pin point a noise from a video.