1. Fuel return lines (to the fuel tank)
2. Fuel pressure regulating valve -N276-, installation torque 80 Nm
3. Fuel return lines
4. Mounting bolt tightening torque when installing 10 Nm
5. High pressure fuel pump (injection pump)
6. High pressure fuel pump mounting bolts, tightening torque during installation 20 Nm + tighten an additional 180° (½ turn)
7. step yes with sensor ring
8. Fastening nut, installation torque 95 Nm
9. Pulley for high pressure fuel pump, tightening torque of mounting bolt when installing 20 Nm + turn an additional 90° (½ turn)
10. High-pressure fuel pump mounting bolt, tightening torque when installing 20 Nm + tighten an additional 45° (⅛ turnover)
11. Fastening bolt, tightening torque 10 Nm
12. High pressure pipe, union nut tightening torque 28 Nm
13. Fuel pressure sender -G247-, installation torque 100 Nm
14. Fuel rail
15. Fuel rail mounting bolt, tightening torque during installation 22 Nm
16. High pressure pipes, union nut tightening torque 28 Nm
17. Seal
18. Seal
19. Clamp for fastening drain fuel hoses
20. Fuel injectors (piezoelectric)
21. Clamping bar screw (tighten the fixing screws first with a torque of max.: 1-2 Nm, after installing the high-pressure pipes, tighten with a torque of: 8 Nm + tighten an additional 180° (½ turn))
22. O-rings
Attention.
- To prevent the high pressure pump from idling and to achieve a quick start of the engine after replacing parts, the following points must be observed:
- If the high pressure fuel pump has been removed or replaced, the high pressure fuel pump must be filled with fuel before the engine is started for the first time. To do this, connect the diagnosis, measuring and information system -VAS 505x- and carry out the function "Removing air from the power system". The fuel pump is only active for 180 seconds at this time.
1. Fuel injector (piezoelectric)
2. Clamping bar screw (tighten the fixing screws first with a maximum torque of 12 Nm. Torque tighten after installing high pressure pipes. 8 Nm + further tighten by 180° (½ turn))
3. High-pressure pipe connection on the injection device, installation torque 40 Nm (during loosening of high-pressure pipelines, keep it)
4. Retaining clamp for return pipes (before proceeding with the installation of the nozzle, the retaining clip should be lightly lubricated with grease)
5. Copper washer