Preliminary Work For Cylinder Head 1-3

NOTE: Dirt and contamination

Risk of damage to units or components

→ Protect components from dirt and contamination.

→ Clean or replace dirty components.

Information

Always replace O-rings.
Molded seals can be reused and are only replaced if damaged.

Remove the engine.
→ Removing Engine .
Loosen three external Torx screws (E12, M8 x 12) on the hydraulic pump pulley (do not unscrew fully).
Release drive belt.
- → Removing Drive Belt .
Remove hydraulic pump pulley.
1. 4.1. Unscrew three external Torx screws (E12, M8 x 12) and remove pulley.
Completely remove intake-air distributor.
→ Removal .
Disconnect fuel connection line.
→ Removing Fuel Connection Line .
Remove the generator.
→ Removing Generator .
Pull off positive crankcase ventilation line on the cylinder head cover.
Loosen air conditioning compressor.
→ Removing air conditioning compressor .
Disconnect hydraulic pump for power steering.
→ Removing Hydraulic Pump .
Remove fuel collection pipe with fuel injectors if necessary (not required after replacing cylinder head gasket).
→ Removing Fuel Collection Pipe (With Fuel Injectors) .
Remove coolant regulator housing cover with coolant regulator.
→ Removing Coolant Regulator Cover .
3.4-litre DFI engine only: Remove high-pressure pump.
→ Removing High-Pressure Pump .
Remove housing for coolant regulator.
→ Removing Coolant Regulator Cover .
Remove coolant distributor housing (unit carrier).
→ Removing Coolant Distributor Housing (Unit Carrier) .
Remove cylinder head cover.
→ Removing Cylinder Head Cover .
Remove positive crankcase ventilation cover.
1. Positive crankcase ventilation cover
2. Molded seal (reusable)
3. O-ring, always replace
4. External Torx screw, M6
  
  Fig 1: Identifying Positive Crankcase Ventilation Cover
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2.9-litre SRE engine only: Remove plastic cap.

Fig 2: Identifying Cap On Cylinder Head
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Remove camshafts.
→ Removing Camshafts .