13.1a. Fuel filter installation details for petrol models 1. Fuel filter, with return line limiting valve, 6-6.8 bar; 2. Fuel supply line, from fuel tank, black; 3. Return fuel line, to fuel tank, blue; 4. Fuel supply line, to engine, black; 5. Screw, 3 Nm; 6. Filter bracket 1, mounted on the fuel tank
13.1b. Fuel filter installation details for petrol models 1. Fuel return hose (to tank), blue marking, connects to the blue line on the connecting point on the right side of the engine compartment; 2. Fuel supply hose (from tank), white marking, connects to the black line on the connecting point on the right side of the engine compartment; 3. Drain plug, 7 Nm (only on BS-4 engines); 4. Fuel filter cover; 5. Bolt, 5 Nm; 6. Engine fuel return hose, blue marking; 7. Fuel supply hose (to additional fuel pump "V393"), white marking; 8. Sealing ring, subject to replacement; 9. Filter element; 10. Nut, 8 Nm; 11. Bolt, 8 Nm, it is not necessary to completely unscrew the bolt to remove the filter; 12. Fuel filter housing
2. When installing the pin (2 in the illustration) the filter of petrol models must fit into the notch (1) on the bracket. The direction of fuel flow is indicated by the arrow.
13.2. Installation position of the fuel filter for petrol models
Data taken from an online portal (SkodaBook.ru)