Removing Sealing Ring For Cardan Flange

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2018 Porsche Cayenne, 2017 Porsche Cayenne, 2016 Porsche Cayenne, 2015 Porsche Cayenne, and 2014 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Pull off O-ring -1- and circlip -2- .

Fig 1: Identifying Sealing Ring And Circlip
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Remove dust boot.
1. 2.1. Pierce two holes in the dust boot using a mandrel.
2. 2.2. Screw in tapping screws -arrows- with a diameter of 4 mm.
3. 2.3. Pull out dust boot using Puller T10055 . → Tapping screws in dust boot
  
  Fig 2: Tapping Screws In Dust Boot
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Remove sealing ring.
1. 3.1. Pierce two holes in the sealing ring using a mandrel.
2. 3.2. Screw in tapping screws with a diameter of 4 mm.
3. 3.3. Pull out sealing ring using Puller T10055 .