To Mark M's previous point my car definitely sounds like a diesel but this is not the first, second, or even third time I've heard of a spun main bearing on this engine. When I was shopping some years back there was an M Sport at Enthusiast Auto Group that had the engine replaced by BMW under warranty at 30K some odd miles. So, how are y'all able to hear/tell a difference between spun main bearings and just normal, operating diesel sounds? I hear some knocking around a bit at start up but everything smooths out pretty quickly when she warms up a little bit
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