My car has 32,000 miles on it, and I plan on doing the "Total Flush" of my auto transmission per the video that requires 14 liters of fluid to complete. I have the filter, gasket, drain plug and seal washer on order, along with 14 liters of fluid from
'Blau Parts" in Wisconsin. I expect everything this week.
The guy who does the video says to disconnect the line that RETURNS from the radiator cooler, and put that in a container, and run 3 liters at a time out of the transmission, then shut off the engine, and add 3 more liters to the transmission, and repeat this 2 more times. HOW DO I DETERMINE WHICH IS THE RETURN LINE FROM THE RADIATOR TRANS COOLER?
He DOES show the lines in his video, but the video is so close up that you can't see the area and determine which line it is. There is no context.
So my question is which line gets disconnected?
Thanks to anyone who has done this and can reply.

 

The line that comes out of the radiators side, nearest the bottom is the return line.

 

Awesome! Thanks very much!