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The list of fixes.
The list of fixes.
1)The first thing BMW used to do is run the engine at
higher rpm's to get oil back up into the oil starved area.
2)BMW's other fix was changing hydraulic lifters to a redesigned type. I am not sure but there maybe two versions of the redesigned lifters.
3)BMW's third fix redesigned head unit.
4)Some have reported they got rid of it with different oils or additives
or even a regular oil change.
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