Fuel tank function - GF47.10-P-3000-01MS

The fuel flows from the controlled fuel pump into the fuel delivery module from the right fuel tank chamber, through the fuel pressure line to the fuel filter with fuel pressure regulator into the left fuel tank chamber.

The filtered fuel is supplied to the engine by the fuel pressure line via the fuel pressure sensor (single-line system).

The left suction jet pump is supplied with fuel via the overflow valve at the fuel filter.

A suction effect is produced in the suction jet pump which draws the fuel from the deepest point out of the left fuel tank chamber to the fuel delivery module. This ensures that the left fuel tank chamber is properly emptied.

The housing of the fuel delivery module serves as a swirl pot.

When cornering with a low level of fuel in the fuel tank, the increased fuel level in the swirl pot ensures that the fuel pump draws in air.

The right suction jet pump is located at the bottom of the fuel delivery module and a fuel strainer located at the fuel pump feed.

Each fuel tank chamber has a fuel level indicator sensor. The resistance values are transmitted separately to the rear SAM control unit with fuse and relay module, which processes the signals accordingly and transmits them to the instrument cluster over the CAN databus.

For maintenance and repair work, loosen the nuts at the top of the fuel tank only when the fuel tank is filled 2/3 to maximum capacity. The fuel tank has no outlet valves. It is drained through the fuel pump via the fuel line in the engine compartment. To empty the fuel pump, actuate using STAR DIAGNOSIS (menu item).