Quote:
Originally Posted by Ovaltine
Had planned to do this last weekend and quickly saw that my diff does not have a drain plug ('07 Coupe). It's even a different differential casting than the one pictured above, as in there's no boss where the plug should be.
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E90 folks seem to use oil extractors for this and do everything through the filler hole.
http://www.e90post.com/forums/showthread.php?t=385975