well i can tell you all about that problem i thought that my rear main was starting to go so bough a new one took tranny down only to find out it is still like new bone dry but the long screws that are back there. oil is coming down the thread took screw out a few time can't find a solution as to why it would leak down the thread so my temp solution was to fill the canal with silicon let dry but after a few days leaking again there should be no reason on this earth as to why oil would seep out like it does then i notice also that maybe pass front axle seal was leaking nope took housing apart same damm thing long screw from pan to engine block. again silicon for now but still leaking only fix i can see is taking oil pan down yea right and see why oil is coming from them spots here are pic of mine. hope this helps i'm not high jacking this thread just sharing my findings to this complain.

Attached Images

    

__________________
4/02 x5 3.0i AUTO BLACK
KISSIMMEE FL