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      07-31-2014, 09:37 AM   #347
Dackelone
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Quote:
Originally Posted by Em/1 View Post
Might want to send an email to tech writer (Mike) at Roundel; I seem to remember him being pretty emphatic about not switching back...
Yup, you should put +FM back in the diff. There IS a reason why BMW says never to switch back once you start to use +FM in a diff.


@dEvo6 Sorry to hear they used the wrong oil. Just look at the guys who bought the new M3/M4... they are going thru these "hassles" too. I don't understand why BMW does not properly train their dealer network.

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