Got my car back today and seems everything is good.
This is what dealer replaced "O-ring" "http://parts.bmwofbridgewater.com/p/BMW__M4/O-ring/43770632/28607849555.html"
Part number - 28-60-7-849-555
This is the comment from their receipt. "Found transmission fluid leaking from trans electrical connector seal O-ring down to the ground. Removed and reinstalled transmission, removed and replaced trans electrical connector seal o-ring. Topped off 1 quart of transmission fluid.
Only cost $30 but the labor cost over $1000
Hope this is some helpful info for other members.
Last edited by chiu7526; 12-17-2014 at 09:31 PM..
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