ENGINE | 642.896/992 in MODEL 906 |
D47.20-1124-09
75 | Fuel tank | M3/5 | Fuel pump with fill level sensor |
Location
The fuel pump with fill level sensor is integrated in the fuel tank.
Task
The fuel pump with fill level sensor serves to make fuel available at an adequate quantity and at the required pressure or the high-pressure pump.
Actuation of the fuel pump with fill level sensor takes place for vehicles with engine 642.9 over the fuel pump relay (K40/9k3), for vehicles with engine 642.8 over the FSCU (N118/5).
Body
The fuel pump with fill level sensor is a single-stage positive-displacement pump. A fuel strainer is installed at the bottom as a coarse filter for the feed from the fuel pump with fill level sensor.
Function
The fuel pump with fill level sensor draws the fuel from the fuel feed module through a fuel strainer after actuation. The fuel pump with fill level sensor then pumps the suctioned fuel through the fuel filter to the high-pressure pump.
Variants
With code (HZ9) Heater booster diesel, the fuel pump with fill level sensor is fitted with a further fuel connection for fuel supply to the stationary heater and has a high delivery volume.