06E906036E

1. [
2. {
3. "step": 1,
4. "title": "Fuel System Depressurization & Coolant Safety",
5. "instruction": "Depressurize fuel lines via diagnostic scan tool or fuse removal. Drain supercharger intercooler coolant circuits partially, as supercharger assembly must be unbolted to access fuel rails."
6. },
7. {
8. "step": 2,
9. "title": "Supercharger (Roots-Type Blower) Assembly Removal",
10. "instruction": "Disconnect drive belt, bypass valve electrical connections, vacuum lines, and supercharger perimeter bolts. Carefully lift the Roots-type supercharger unit from the engine V-valley."
11. },
12. {
13. "step": 3,
14. "title": "Lower Intake Manifold Runner & Fuel Rail Disconnection",
15. "instruction": "Disconnect high-pressure rail crossover pipes (27 N·m flare nut). Unplug individual direct injector electrical harnesses and unbolt fuel rail mounting hardware (10 N·m)."
16. },
17. {
18. "step": 4,
19. "title": "Injector Extraction & Intake Valve Carbon Cleaning",
20. "instruction": "Use a slide hammer puller kit (T10133) to extract stubborn injectors smoothly. Inspect intake valves for heavy carbon build-up; perform walnut shell blasting if necessary before new injector installation."
21. },
22. {
23. "step": 5,
24. "title": "Teflon Seal Protection & Injector Rail Reassembly",
25. "instruction": "Clean cylinder head injector pockets. Do not lubricate Teflon seals. Install new injectors with proper support clips into fuel rail, seat into cylinder head bores, and torque rail bolts progressively to 10 N·m."
26. },
27. {
28. "step": 6,
29. "title": "Fuel Line Reconnection, Supercharger Installation & Pressure Test",
30. "instruction": "Reinstall high-pressure fuel lines and torque flare nuts to 27 N·m. Replace supercharger green intake port gaskets, reinstall supercharger, bleed intercooler coolant, and verify zero fuel leaks under 150-bar rail pressure."
31. }
32. ]

Common diagnostic trouble codes (DTCs) triggered when this common rail injector experiences wear, circuit faults, or calibration drift: