Fuel system

WARNING: This page is about a different car, the 2003 BMW Z8, 2002 BMW Z8, 2001 BMW Z8, and 2000 BMW Z8. However, it is still accessible from the selected car via links, so may be relevant.

The fuel tank contains the surge chamber with the electric fuel supply pump.

The surge chamber ensures that the fuel supply pump is properly supplied in all vehicle operating states.

The suction jet pump installed in the base of the surge chamber supplies the surge chamber with fuel.

The pressure limiting valve controls the pressure required to operate the suction jet pump. The outlet protection valve protects the fuel return line. The valve closes in the event of a pressure drop when the fuel return line is damaged or disconnected.

This prevents fuel from escaping from the fuel tank in extreme vehicle positions (overturning, inclined position).

The filler pipe is split in the fuel tank. This helps to fill the tank more quickly. The two non-return valves prevent fuel from splashing back in the filler pipe after shutdown of the petrol/gas pump nozzle.