Removing Coolant Pump

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. Unscrew six external Torx screws -2 and 3-  on the coolant pump.
   Fig 1: Overview For Coolant Pump Component

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   1. Coolant pump
   2. 5 x external Torx screw (E10), M6 x 20
   3. 1 x external Torx screw (E12, M8 x 25)
2. Remove coolant pump.
   1. 2.1. Collect emerging coolant in a clean container.
   2. 2.2. The pump seal can be reused if there are no visible signs of damage. 
3. Check coolant pump pulley for damage and replace the coolant pump if necessary.
4. Carefully clean the sealing faces.