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Join Date: Sep 2012
Location: Northern Virginia
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I've done both the 540i and the M5 RMS. Never bought the carrier as I've got a press and made a drift to press it into the carrier. But, all the other parts are a must have.
My advice on doing it is to a) watch the bolts from the oil pan that hold the carrier down (eg, don't force the carrier off without removing all the bolts!), b) clean all surfaces.
c) You may have scoring on the crank, it's probably fine even if it's noticeable (I've put 60K on one that looked terrible and still no new leakage).
d) When installing the carrier/seal besure to lube up both the crank and the seal. Work hard to press evenly and have the lip seal go over the end of the crank all at once. You can't twist it due to the oil pan but as long as it goes on uniformly it will be fine.
YMMV and Good Luck!