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. Loosen the fastening screw -1-  on the cable duct -2-  .
   Fig 1: Identifying Cable Duct Fastening Screw

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   1. 1.1. Unscrew one external Torx screw (E10) -1-  on the intake-air distributor for cylinder bank 4-6.
   WARNING: Hot fluid

   • Danger of scalding

   → Let the fluid cool down.

   → Wear personal protective gear.

2. Disconnect coolant lines -1-  for the turbocharger (cylinder 4-6) above the oil separator.
   Fig 2: Identifying Turbocharger Coolant Lines

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   1. 2.1. Place a cloth under the coolant hoses.
   2. 2.2. Loosen two spring band clamps and pull off hoses.
   3. 2.3. Soak up drops of coolant with a cloth.
3. Unclip electric line for starter at the oil separator.
4. Remove oil separator.
   1. 4.1. Release and pull off the engine vent line -1-  at the oil separator by pressing the locking ring.
   2. 4.2. Unscrew two external Torx screws (E10, M6 x 20) -2-  .
   3. 4.3. Pull oil separator -3-  off the bracket for the oil/water heat exchanger.
   4. 4.4. Close off the bores using suitable stoppers.
      Fig 3: Identifying Oil Separator

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.