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Yes, this was my solution - the hard part was the fill plug.
See my post Sept 18th 2015
Problem solved. The 2011 has a fill port on the side (drivers) of the Transmission with a Torx 55 plug. Unfortunately the fill plug is very tight and with little room for a socket or fingers. The rest of the process is as described in the DIY article for the earlier model. A garden sprayer with a pipe bent into a hook was used to fill. The fill plug should be inserted before the engine runs to heat the ATF to 40 degrees . My car has a 36mm stand pipe in the drain plug; I note the parts diagram shows two lengths.. The ATF was dirty and the four magnets had some filings. I am glad I serviced the Transmission at 90,000 miles rather than the scheduled 160,000 recomended.
The DIY is excellent but the 2011 Cayenne has eliminated the 17mm fill plug on the pan. The drain plug has the overflow tube but I have not figured out the best way to fill while the engine is running.
I am at 85,000 miles and do not want to wait to the 160k maintenance schedule. The Asin transmission in the 2011 Cayenne has a screw in fill plug. I assume one of the Mitivac adapters fits (the Toyota one MVA581)? How much oil does one pump in or does one just measure the dirty oil? I assume the engine is at idle and the oil in the pan is at 40 deg centigrade while filling. Mike