- fuel tank with fuel level sensors and electric fuel pump;
- piping systems;
- fuel filter with fuel pressure regulator;
- fuel injection systems;
- tank leak diagnostic module and dust filter;
- fuel vapor recovery systems.
Fig. 3.19. Fuel supply system: 1 - fuel tank; 2 - fuel pump; 3 - pressure limiting valve; 4 - check valve; 5 - filler neck pipe; 6 - equalizer; 7 - jet pump; 8 - drain valve; 9 - lid; 10 - supply pipeline; 11 - return pipeline; 12, 13 - ventilation duct; 15 - expansion tank; 16 - valve; 17 - curtain valve; 18 - pressure regulator; 19 - fuel filter; 20 - distribution main; 21 - ventilation valve; 22 - ECU; 23 - intake manifold; 24 - purge pipeline; 25 - activated carbon filter; 26 - filter purge pipe; 27- diagnostic module; 28 - dust filter
[The original article is located on «BMWMan»]