4. Fuel Supply System E53: Notes
4.1 Description Of Parts
FUEL SUPPLY SYSTEM E53 DESCRIPTION
| 1. Fuel tank (plastic) | 15. Expansion tank |
| 3. Pressure relief valve | 17. Rollover valve |
| 4. Non-return flap | 18. Pressure regulator |
| 5. Filler neck | 19. Fuel filter |
| 6. Tank expansion line | 20. Fuel rail |
| 7. Suction jet pump | 21. Fuel evaporation control valve |
| 8. Overflow protection valve | 22. Engine control unit |
| 9. Fuel filler cap | 23. Intake manifold |
| 10. Fuel feed line | 24. Flush line |
| 11. Fuel return line | 25. Activated carbon filter |
| 12. Refuelling vent line | 26. Breather pipe |
| 13. Operating vent line | 27. Tank leak diagnosis module |
| 14. Pressure check line (USA only) | 28. Dust filter |