
The Citroen C4 fuel pump is a "toroid" and is fixed on three legs inside the fine filter body. The knives are fixed in special pases and glued to the walls from the outside. To remove the pump, you need to cut the legs outside the glass and then hit it. At the bottom of the glass there is a membrane that prevents reverse fuel and the extra pump, which provides a permanent discharge from the pump. to vent the liquid and blow it off the other side through the output pipe. Repeat the process several times to clean up the filter from the sand.
- To remove the pump, cut the legs from the outside of the glass and then hit them.
- At the bottom of the glass is a membrane that prevents reverse fuel output and the additional pump that provides permanent discharge from the side of the glass, the sub-pump tube should be disconnected.
- Then we wash the fine filter with liquid to wash carburettors and petrol: fill the free space with liquid half (visible from the outside), blab, empty the liquid and blow off the other side through the output pipe.
- Repeat the process several times to clean the filter from the sand.