Removing Double Sealing Ring

Information 

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

1. 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: Removing Short Halfshaft Flange

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Drive out the long halfshaft flange -2-  using a plastic hammer.
   1. 2.1. Replace the circlip.
      Fig 2: Identifying Flanged Shaft

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. 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 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. 
4. 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 Housing Cover And Screws

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
5. Lift the differential -1-  out of the housing.
   Fig 5: Identifying Differential Of Housing

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Information 

   • Be careful with the spacer ring behind the bearing ring during removal and installation. 
   • The original bearing ring must be re-installed. 
6. Remove bearing ring -1-  with spacer ring -2-  .
   Fig 6: Identifying Bearing And Spacer Ring

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
7. Vehicles with regulated rear-differential lock:  Remove oil baffle plate -1-  using slide hammer kit Nr.168  .
   1. 7.1. The oil baffle plate can also be removed together with the double sealing ring.
      Fig 7: Identifying Oil Baffle Plate

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
8. Remove double sealing ring using internal puller Nr.108 Pos.5 -1-  and counter support Nr.107 -2-  .
   Fig 8: Removing Double Sealing Ring

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
9. Clean the sealing surface of the sealing rings and check for damage.
10. Replace sealing rings -1 and 2-  on the housing flange.
    Fig 9: Identifying O-Rings On Housing Flange

    Courtesy of PORSCHE CARS NORTH AMERICA, INC.