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      05-06-2011, 07:26 PM   #32
Brandon26pdx
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Drives: 2011 135i
Join Date: Oct 2007
Location: Portland, OR

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Quote:
Originally Posted by DarthColin View Post
There is more to it that just the engine. The transmission and differential are different. I would bet that the mandatory 2000 km service has something to do with the diff.
All M cars get the 1200 mile service which does include the transmission and rear diff oil being changed and I'm sure this one is no different. There may be legitimate reasons for changing the oil in the diff when LSD's are involved...break in oil that needs to be removed or something to that effect. Non-LSD diffs I can't see any good reason to do waste the money or effort.
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