WARNING: This page is about a different car, the 2016 Porsche Macan and 2015 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.
Fastening screws for ATF oil pan → Tightening torque: 15 10 Nm (7.5 ft lb.)
Fig 1: ATF Oil Pan Fastening Screws Tightening Sequence
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
ATF oil pan
Seal/replace
Expansion rivet
In original equipment for securing seal to ATF oil pan