Removing Rear-Axle Valve Block

→ Avoid contact with caustic fluid.

→ Wear personal protective gear.

→ Ensure that there is good ventilation.

→ If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.

→ Do not spill fluids.

→ In the event of contact, wash the component or surface with water.

→ Replace components that are already damaged.

Fig 1: Locating Rear Axle Valve Block

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. Unscrew and remove fastening screw for protective plate -1-  and remove protective plate.
2. Unscrew and remove top left fastening screw -2-  and bottom fastening screw -3-  .
   Fig 2: Identifying Fastening Screws (Left)

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Disconnect electric plug connection -3-  .
4. Remove holder -4-  .
5. Unscrew cap screws on oil pressure lines -1-  and pull oil pressure lines out of the valve block.
   Fig 3: Identifying Connector And Oil Pressure Lines

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
6. Unscrew and remove top right fastening screw -1-  . Counter at the nut on the back. 
   Fig 4: Identifying Fastening Screw (Right)

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
7. Mark the installation position of the steel flexi-pipes -2-  on the steel flexi-pipes themselves and on the valve block using a suitable touch-up stick -3-  .
8. Unscrew and remove cap screws on steel flexi-pipes -1-  .
   Fig 5: Identifying Screws And Steel Flexi-Pipes

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
9. Pull steel flexi-pipes out of the valve block.

   Information 

   • After removing the lines, they must be closed off immediately using a clean cap if you do not intend to install the new valve block straightaway. 
   • When doing this, make sure that no dirt gets into the system as this can result in system failure. 
10. Remove valve block.