Removing Oil Separator

Information 

Specifications for wrench sizes (a/f specifications) for screw heads are described as follows:

• Torx screws: (E..) for external Torx, (T..) for internal Torx. 
• Hexagon-head bolts (internal and external hexagon): Wrench size (a/f) 

1. Remove positive crankcase ventilation line.
   1. 1.1. Release rapid-action coupling on positive crankcase ventilation line and pull it off at the cylinder head -arrow-  .
   2. 1.2. Check O-ring on rapid-action coupling and replace it if necessary.
   3. 1.3. Unscrew external Torx screw (E10, M6 x 20) -1-  at the connecting flange of the positive crankcase ventilation line.
   4. 1.4. Pull connecting flange out of the oil bracket. Replace O-rings.
   5. 1.5. Close off openings with stoppers or mask the openings.
      Fig 1: Identifying Positive Crankcase Ventilation Connection On Cylinder Head

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Release and pull off cable plug for coolant temperature sensor.
3. Unscrew two external Torx screws (E10, M6 x 20) -3-  on the oil separator -1-  .
   1. 3.1. Pull off positive crankcase ventilation line -2-  on the oil separator.
      Fig 2: Identifying Oil Separator - Top View

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
4. Remove oil separator.
   1. 4.1. Carefully press positive crankcase ventilation line aside and out of the work area.
   2. 4.2. Pull oil separator -1-  up out of the oil bracket and remove it by pulling it towards the passenger compartment.
   3. 4.3. Clean connection points and seal with stoppers.
   4. 4.4. Replace O-rings.
      Fig 3: Guiding Out Oil Separator

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.