Component Overview

Information 

• Always perform a leak test in the high-pressure area after opening the fuel system. 
• This is particularly important if components are disassembled and replaced. 
• The threaded connections of the fuel lines must be coated with OKS 1710 lubricant (Part No. 000.043.303.27) before being screwed back on again. 
• Always allow a drying time of 60 minutes for the lubricant! 
• Blow residual fuel out of the lines and high-pressure pump (into a fuel-resistant container or cloth) using compressed air before installation. 
• The tightening specifications must be strictly observed. 

Overview of fuel system in engine compartment: 

Fig 1: Fuel System On Engine Components Location

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. High-pressure pump
2. O-ring
3. High-pressure pump screw > Tightening torque 13 Nm (9.5 ftlb.) 
4. High-pressure fuel connecting line > Tightening torque 25 Nm (19 ftlb.) 
5. Low-pressure fuel line
6. Screw, M6 x 16 > Tightening torque 13 Nm (9.5 ftlb.) 
7. Clip for fuel line and vent line
8. High-pressure sensor > Tightening torque 32.5 Nm (24 ftlb.) +/- 2.5 Nm (2 ftlb.) 
9. Low-pressure sensor > Tightening torque 22 Nm (16 ftlb.) +/- 2 Nm (1.5 ftlb.)  Low-pressure sensor
10. Fuel collection pipe, bank 1-2
11. Fuel collection pipe, bank 3-4
12. Screw, M6 x 85 > Tightening torque 13 Nm (9.5 ftlb.)