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      11-11-2011, 04:37 PM   #5
VictorH
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Drives: '09 M3
Join Date: Dec 2007
Location: SC

iTrader: (2)

Sorry no "official" document. Some of this is strategic.
1) For the rear diff oil change, I told them that my rear diff was making noise going around corners (it was, but it wasn't bad) - they changed diff oil.
2) Spark plugs I'm not sure why they did them so early. The owner's manual says 37,000 miles

I think the "inspection" which my car said was due is a top-bottom inspection but my service note didn't say what they did or inspected. Good luck with your service