That's news to me, I thought the E83 used the M54 with the same CCV as the E53. The wife's 2005 is the same. There is no need for a metal PCV over plastic. If you want quality and adjustability the M/E Wagner PCV is REALLY nice.
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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)
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