Polo Mk4
| Fuel filter - repair |
| 1 - | Return hose |
| q | Tandem pump → Item. |
| q | Blue or blue marked, respectively |
| q | Check grip firmness |
| 2 - | Supply hose |
| 3 - | Support lock |
| 4 - | Regulator valve |
| q | Installation position: Direction of -arrow- to fuel container |
| q | When changing filter, remove braces and regulator valve with fuel hoses connected |
| q | When below + 15 °C: Open pass to filter |
| q | When above + 31 °C: Closed filter pass |
| 5 - | Return hose |
| q | Fuel radiator → Chapter. |
| q | Ensure firm fastening |
| q | Blue or blue marked, respectively |
| 6 - | Supply hose |
| q | From container → Item. |
| q | White or white marked |
| q | Ensure firm fastening |
| 7 - | Fuel filter |
| q | Before assembly supply with diesel |
| q | Flow direction marked with -arrows- |
| q | Do not change connectors |
| q | Replace when damaged |
| 8 - | Joint |
| q | Replace when damaged |
| 9 - | Drain screw |
| q | For ventilation, remove brace of regulator valve and remove valve with fuel hoses connected |
| q | Loosen and drain around 100 cm3 of fluid |
| 10 - | 25 Nm |
| 11 - | Support |
| 12 - | Insert |
