Octavia Mk1
| Summary of components of fuel filter |
| The fuel flow direction is indicated with arrows on the hoses, on the glow valve and the fuel filter. |
| 1 - | Return-flow hose |
| q | to fuel cooler |
| q | blue marking |
| 2 - | Intake hose |
| q | from fuel tank |
| q | white marking |
| 3 - | Retaining clip |
| q | replace if damaged |
| 4 - | Preheating valve |
| q | Fitting position: Arrow points to fuel tank |
| q | if the filter is replaced remove retaining clip and preheating valve with the fuel lines connected |
| q | Temperature below +15 °C: access to filter open |
| q | Temperature above +31 °C: access to filter closed |
| 5 - | O-ring |
| q | replace |
| 6 - | Return-flow hose |
| q | from the tandem pump |
| q | blue marking |
| 7 - | Fuel hose |
| 8 - | Fuel temperature sender -G81- |
| 9 - | Non-return valve |
| q | only vehicles ► 03.02 |
| q | Fitting position: arrow points to tandem pump |
| 10 - | Intake hose |
| q | to the tandem pump |
| q | white marking |
| 11 - | Fuel filter |
| q | fill up with diesel fuel before fitting |
| q | do not interchange connections |
| q | replace if damaged |
| 12 - | Gasket |
| q | replace if damaged |
| 13 - | Drain plug |
| q | to ventilate remove the retaining clip of the preheating valve and remove preheating valve with the fuel lines connected |
| q | release and drain approx. 0.1 litre fluid (catch) |
