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      02-28-2023, 02:12 PM   #257
Assimilator1
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Drives: BMW M3 e92 08 & 330d e90 10
Join Date: Sep 2019
Location: UK, Surrey

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2010 BMW 330d  [8.00]
2008 BMW M3  [0.00]
Yep, no such thing as a bargain car!

Quote:
Originally Posted by BGBF18 View Post
Sorry, not a clutch, a de-coupler pulley.

I’ll have to find it. It came from an M3 technical document designed for SAs and technicians.

Also had a discussion w/ the M-certified technician who fixed my E90 about this very subject.
Hmm, well the info I found is a little ambiguous, although what I've found so far points to electrical switching of the alternator (especially pic 2), also I found nothing about a clutch for it. Nor have I ever seen one for any type of alternator (many diesels have a one way pulley, which I suppose you could call a clutch, but it is mechanical only and so not switchable). Pic 1, pic 2
If someone knows where I can find more precise info, then by all means LMK!
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Last edited by Assimilator1; 03-11-2023 at 07:49 AM..
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