1 Series E81 130i (N52K) 3-door
Fuel supply system (US version)
1. Fuel level sensor, left
9. Purge air line to tank venting valve
2. Suction jet pump, left
10. Fuel line to engine
3. Fuel level sensor, right
11. Rollover valve
4. Suction jet pump, right
12. Service vent valve
5. Surge chamber
13. Filler vent valve
6. Electric fuel pump
14. Dust filter
7. Fuel filter with pressure regulator
15. To atmosphere
8. Tank leak diagnosis module (see drawing 5.2)
8. Evaporator strainer (see drawing 5.1)
3. Function description (see also drawing)
Fuel system
The saddle-shaped fuel tank contains the surge chamber with integrated electric fuel pump on its right side.
The surge chamber ensures that the fuel pump is properly supplied in all vehicle operating states.
The fuel is pumped from the right side of the fuel tank into the surge chamber via the suction jet pump integrated in the
surge chamber.
The suction jet pump in the left fuel tank half pumps the fuel through the tank expansion line to the right side of the fuel
tank.
The suction jet pump is operated via the fuel feed line.
Return line, pressure regulator and fuel filter are located in the tank.
Fuel supply to engine:
RA Fuel supply system (petrol/gasoline)
BMW AG - TIS
22.01.2013 03:54
Issue status (12/2007) Valid only until next DVD is issued
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