1. Nozzle: always replace together with the O-ring and the Teflon sealing ring of the combustion chamber; replace sealing rings; observe the correct mounting position
2. Support ring: replace
3. Fuel rail FSI injectors
4. Roller pusher
5. Fuel pressure regulator -N276-
6. High pressure pump: with fuel pressure control valve-M276-; the fuel tank contains an electric fuel pump that supplies fuel to the mechanical fuel pump; when installing the high pressure pump, make sure that no impurities enter the fuel system; to install a high pump in the fuel system there should be no excess pressure; relieve pressure in the fuel system; install fuel lines without stress
7. High pressure pump bolts: replacement; 1.8 l engine: 8 Nm + turn 90° (¼ vol.); engine 2.0 l; 20 Nm
8. Branch pipe: pressure fuel line on the high pressure pump; replace; 1.8 l engine: 40 Nm; 2.0 l engine: 30 Nm.
9. Union nut, 27 Nm: fuel pressure line
10. Union nut, 20 Nm: fuel pressure line
11. Union, 40 Nm: pressure fuel line on the fuel rail; replace
12.9 Nm
13. Partition plates
14. Gasket: check, replace if damaged
15. Dampers for changing the geometry of the intake manifold
16. Vacuum intake manifold flap actuator
17. Intake manifold flap valve -N316-
18. Intake air temperature sender -G42- with intake manifold pressure sender -G71-: 5 Nm
19. Throttle valve control unit -J338-: with throttle valve actuator with electrical throttle module -G186-, throttle actuator angle position sender 1 -G187- and throttle valve actuator angle position sender 2 -G188-; Clean used throttle valve unit -J338- before installing; after removal and installation or replacement of throttle valve unit -J338-, it must be adapted again to engine control unit -J623-; 7 Nm
20.9 Nm
21. Intake manifold flap potentiometer -G336-: After removing and installing or replacing the intake manifold flap potentiometer -G336-, it must be adapted again to the engine control unit -J623-
22. Intake manifold
23. Fuel pressure sender -G247-, 27 Nm: Lubricate thread and cone with clean engine oil