Note: See the warnings provided in Section General information and precautions.
Avoid contact of fuel with exposed skin - use protective gloves. Perform work only in a well-ventilated area.
General information
The fuel pump is combined with the fuel flow sensor into a single assembly installed in the upper part of the fuel tank. Access to the assembly is provided by removing the cover of a specially provided hatch in the floor panel in the luggage compartment of the car. The assembly is lowered inside the fuel tank, and therefore its removal is associated with the entry of the volatile phase of the tank contents into the atmosphere.
Removal
1. Release residual pressure in the fuel system (see section Relief of residual pressure in the fuel system).
2. Make sure the car is parked on a level surface, then disconnect the negative cable from the battery.
3. Fold the rear seat of the vehicle forward and remove the decorative cover of the floor panel.
4. Remove the mounting screws and the fuel pump/flow sensor assembly access cover in the floor panel.
5. Disconnect the electrical wiring connector at the top of the assembly.
6. Place a rag around the fuel supply and return hose unions, then loosen the clamps and disconnect the hoses from the top of the assembly. Don't forget to mark the hoses in the order they were connected - the unions have special marks in the form of arrows indicating the direction of flow.
7. Unscrew the plastic ring securing the assembly in the fuel tank opening.
8. To release the bayonet lock, turn the assembly to the left, then remove it from the tank...
...after waiting for the remaining fuel to drain into it. Remove the rubber sealing gasket.
Note: The plastic retaining ring can be removed using adjustable plumbing pliers.
9. Remove the pump assembly with the sensor from the car and place it on a sheet of absorbent cardboard or a spread rag. Check the float at the end of the sensor lever for punctures and signs of fuel penetration - a damaged float must be replaced.
10. The assembly is equipped with a spring-loaded fuel intake, the design of which ensures the ability to suck fuel into the pump from the lowest point of the tank. Check the freedom of movement of the fuel intake
11. Inspect the rubber sealing gasket of the fuel tank access door opening for signs of damage. Replace if necessary.
12. Clean the surfaces of the slider and the track of the working element of the sensor from dirt deposits and check the components for cracks.
Installation
The article is located on the website SkodaBook.ru
Installation is carried out in reverse order. Please note the following points:
- a) Try not to bend the float lever of the sensor when installing;
- b) When installed correctly, the float arm should be positioned perpendicular to the vehicle's centerline;
- c) Before installation, lubricate the installation rubber gasket with clean fuel;
- d) The arrow marks on the top cover of the assembly and the edge of the hatch opening in the tank must be aligned;
- e) Ensure that the fuel supply and return hoses are connected to the assembly in the correct order (in accordance with the markings applied during dismantling).