Assembly Overview - Lower Part Of Intake Manifold

Information 

The lower part of the intake manifold on the left is shown here.

Fig 1: Exploded View Of Lower Part Intake Manifold Assembly

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. Screw → Tightening torque: 2.5 Nm (2 ftlb.) 
2. Potentiometer for intake manifold flap
3. Sealing ring/replace if damaged 
4. Sleeve
5. Fuel pressure sensor → Tightening torque: 22 Nm (16 ftlb.) 
6. Holder
7. Screw → Tightening torque: 9 Nm (6.5 ftlb.) 
8. High-pressure lines → Tightening torque: 27 Nm (20 ftlb.) 
9. Screw → Tightening torque: 9 Nm (6.5 ftlb.) 
10. Nut → Tightening torque: 9 Nm (6.5 ftlb.) 
11. Screw → Tightening torque: 9 Nm (6.5 ftlb.) 
12. Screw → Tightening torque: 2.5 Nm (2 ftlb.) 
13. Retaining bar for fuel distributor
14. Union → Tightening torque: 40 Nm (30 ftlb.) 
15. Fuel distributor
16. Seal/replace 
17. Lower part of intake manifold
18. Seal/replace 
19. Support ring
20. O-ring/replace, coat with engine oil before installation 
21. Spacer ring/replace if damaged 
22. Fuel injector
23. Top sealing washer
24. Bottom sealing washer
25. Circlip
26. Combustion chamber sealing ring/replace 
27. Sealing ring/replace if damaged 
28. Actuating lever for vacuum actuator
29. Vacuum hose for intake manifold flap valve
30. Vacuum actuator for intake manifold flap control