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E60 M54 rough startup
Hey guys, I know it's a e39 forum but my mom's car is a E60 530i with the M54, I thought you guys would be more familiar with the M54.
Everytime you start her car it shakes very hard and settles down slowly in around 30secs, I've replaced the pcv system, plugs, coils, oil and coolant. The car runs perfectly smooth once it has settled down, anyone have an idea what the issue could be? Thanks!
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