A couple of thing that is needed are
1- Jackstands X4
2-ATF fluid (about 10 liters/quarts) - (Dextron IID is the original spec) ur choice ;-)
3- Filter- porsche part 943-307-011-02-M30
4- Filter O'ring - porsche part 94330704100
5- Drain Pan Gasket-porsche part 943-321-123-06-M260
6- A bit of garden hose-
7- Manual pump Sprayer(the ones used for weeding etc, etc)
8- Torx Bit T27
Hex bit- 6mm
After the car is on jackstands, remove the engine splash guard and transmission splash guard. Removal of the trans/axle splash guard will give you greater access to remove the bolts holding the Drain pan
Remove the existing fluid
(1)Unplug the drain pan plug( need a hex bit 6mm) and let the oil out onto your oil container
(2) Unplug the banjo from the ATF measure to the the side of the drain pan
Remove the drain Pan (clean the drain Pan/ magnets)
To remove the drain pan, undo the 6 bolts on the located around the drain pan, the bolt near the atf level guage is highlighted in the above picture, please note that there is still fair amount of old fluid in the drain pan therefore, support the pan when removing the final (6th) bolt
you will find that the removal of the splash guard will give greater access to these 6 bolts
Once the drain pan is removed, clean throughly the gunk built up on the magnets (there are 3 magnets in the base of the drain pan, sorry, i didnt take a pic at this stage as my hands were greased up with slippery old atf fluid
Remove the old Filter and seal (o'ring)
The filter is located above the drain pan (see pic below)
you will need a Torx T27 to remove the 3 very long but thin bolts
With the new filiter in hand, I put a bit of white lubricant on the rubber seal before reinserting the new filter
Ditto with the drain pan gasket(sorry no pics)
Reinstall the drain pan (6 bolts) , pan plug and banjo(with new washers)
Filling up ATF
The AFT fastfill is located here
the ATF fast fill works as a 1 way filling device here is a picture in detail
I filled it up to the max level on the 30 C marker and then started the car, went through the gears
The oil level will drop and needs to be filled up to a little over Max (on the 30C marker)
If you do overfill (as at running temp), take out excess via banjo
be careful.
Good Luck !
Rgds
Mark