Removing Double Sealing Ring

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

Information

Replace circlips on the halfshaft flanges.
Carefully slide in the long halfshaft flange, keeping it straight at all times.

Remove the short halfshaft flange on the transmission cover using the Puller T10037 -1- .
1. 1.1. Secure the puller using two screws (M10 x 1).
  CAUTION: fine thread!
2. 1.2. Replace the circlip.
  
  Fig 1: Identifying Short Halfshaft Flange
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Drive out the long halfshaft flange -2- using a plastic hammer.
1. 2.1. Replace the circlip.
  
  Fig 2: Identifying Long Flanged Shaft
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Pull off the centering pin -1- on the housing cover using an M6 screw -2- and Slide Hammer Kit Nr. 168 -3- .

Fig 3: Pulling Off Housing Cover Centering Pin
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information
- The aluminum screws for the differential housing cover must be replaced.
- The aluminum screws for the Porsche Doppelkupplung (PDK) must be tightened using the yield -point- controlled tightening method.
- Special tool Electronic Torque Wrench 9768 is used for this.
- To ensure that the screws are tightened uniformly, the corresponding tightening setting "light, medium or hard" must always be used.
Unscrew 13 aluminum screws (M8 x 25) -2- on the differential housing cover -1- .
1. 4.1. Remove housing cover.
2. 4.2. Replace aluminum screws.
  
  Fig 4: Identifying Differential Housing Cover Aluminum Screws
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Lift the differential -1- out of the housing.

Fig 5: Identifying Differential
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Information
- Be careful with the spacer ring behind the bearing ring during removal and installation.
- The original bearing ring must be re-installed.
Remove bearing ring -1- with spacer ring -2- .

Fig 6: Identifying Bearing Ring And Spacer Ring
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Remove double sealing ring using Internal Puller Nr. 108 Pos. 5 -1- and Counter Support Nr. 107 -2- .

Fig 7: Removing Double Sealing Ring
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Clean the sealing surface of the sealing rings and check for damage.