Finally got off my butt and did the transmission fluid change last weekend. Figured out how to adapt the CTA tool to my Motive power bleeder, got a male to barb fitting, some surgical tubing and two hose clamps
Pop the drain plug out and let it drain
Remove the inner plastic drain plug and let it drain even more. Now take the eleven 10mm bolts that hold the pan on out, leave two in so you can crack the pan and drain more
Remove the pan and try not to get fluid everywhere. Drain the rest of the pan. Remove the four 10mm bolts holding the trans filter on, drain even more fluid. This is an extremely messy job!
Put the new transmission filter on
Clean up the pan and magnets, put on the new gasket
Put the pan back on with the eleven 10mm bolts, the three bolts near the front of the car are a real PITA to get on, need a swivel to have a chance. Annoyingly Porsche has holes in the cross member to give you access, but they didn't make them large enough to give you a straight shot
Now to fill the transmission. Dump the fluid in the power fill, screw the adapter into the pan, pressurize the Power fill, open up the valve and let it do it's thing.
Here's the crappy part. You need to fill the transmission, but the fluid temp needs to be lower than 30C. You're supposed to run through the gears until the fluid is between 35-45C, then drain the excess fluid out. Well, I filled it and the transmission fluid temp was still well over 45C. Even with a fan on the transmission for hours, it still didn't get low enough. So I left it on the lift over night, next day it was still 32C. Screw it! Went ahead and started it up, ran it through the gears, started to drain the excess fluid when it hit 38C. Had to turn it off when it hit 44C and put a fan on it to cool it down again. Argh! An hour later, went back out and did it all over again, this time I was able to drain out the excess before it hit 44C.
Lessons learned... I needed more cardboard on my garage floor. I should've done this when the SUV was stone cold. My wife had driven it and I'd let it sit for an hour, that wasn't nearly long enough. Only put in 8 bottles of transmission fluid, not 9. I had way too much fluid in it.
Glad this is done, this was the last maintenance item to do to it. It's coming up on 120k miles, so I'll probably have to do the serpentine belt again soon....