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      07-19-2012, 07:03 PM   #4
First Lieutenant
jjw2331's Avatar

Drives: 2011 JtBlk e92 M3
Join Date: Sep 2008
Location: Michigan

iTrader: (6)

Originally Posted by M3PO View Post
Thanks for this! I am planning to do this soon.

Just an FYI for people, there's a large portion of the old tranny fluid in the lines, pump, and cooler. To truly change it all, the pump has to be activated. From what I understand, the method in this DIY only drains something like half of the fluid in the system.
That is right. Nice catch.

I still haven't figured out a way to drain the transmission cooler. I read that you can send power to one of the plugs which will turn the motor on allowing the rest of the oil to pump out. I also heard BMW techs can turn it on via DIS Tester. If I find a way to do it I will update.