Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Porsche Boxster Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Disassembling and assembling fuel ring pipe: Notes
FUEL RING PIPE REMOVAL & INSTALLATION PROCEDURE
| No. | Designation | Qty. | Removal | Installation |
|---|---|---|---|---|
| 1 | Closure cap | 1 | Note The seal or sealing ring in the closure cap is not exchangeable. It must therefore be used only once. Tightening torque: 2.5 + 0.5 Nm (2 + 0.5 ftlb.). Wrench size 13 mm. | |
| 2 | Valve | 1 | ||
| 3 | Hexagon-head bolt M6x12 | 4 | ||
| 4 | Hexagon-head bolt | 1 | ||
| 5 | Fastening clamp for throttle cable 16x15 | 1 | ||
| 6 | Clamp | 1 | Ensure correct seating. | |
| 7 | Pressure regulator | 1 | Push or plug vacuum control pipe into the left-hand intake distributor rubber sleeve (see ASSEMBLY INSTRUCTIONS ). | |
| 8 | O-ring 20x2.5 | 1 | Replace | |
| g | O-ring 5x2.5 | 1 | Replace | |
| 10 | Fuel return line M14x1.5 | 1 | Ensure it is countered with a wrench while being loosened. | Tightening torque 25 + 5 Nm (18 + 3.5 ftlb.) Wrench size 17 mm. Ensure it is countered with a wrench while being tightened. |
| 11 | Clamp | 6 | Ensure correct seating. | |
| 12 | Injection valve | 6 | ||
| 13 | O-ring | 6 | Replace | |
| 14 | O-ring | 6 | Replace | |
| 15 | Fuel ring pipe | 1 | ||
| 16 | Fuel supply line M16x1.5 | 1 | Ensure it is countered with a wrench while being loosened. | Tightening torque: 30 + 5 Nm (22 + 3.5 ftlb.). Wrench size 19 mm. Ensure it is countered with a wrench while being tightened! |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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