Leon Mk2
| Removing and installing fuel tank with attachments and fuel filter: engine code AJH |
Note| Ensure, on completion of all work on the fuel delivery unit and fuel gauge that the fuel supply and fuel return hoses do not touch the fuel tank (transfer of pumping noises). |
| 1 - | Cap |
| 2 - | Seal |
| q | If damaged only renew together with cap. |
| 3 - | Retaining ring |
| 4 - | Rubber cup |
| 5 - | Gravity valve |
| q | To remove valve unclip upwards out of filler neck |
| q | Check valve for through-flow; valve vertical: open, valve tilted 45 °: closed. |
| 6 - | O-ring |
| q | Renew if damaged. |
| 7 - | Breather valve |
| q | Cannot be removed, renew only together with filler neck → Item |
| q | Checking → Fig.. |
| 8 - | Pressure retention valve |
| q | For fuel tank breather. |
| q | Checking → Fig., → Fig.. |
| 9 - | Return line |
| q | Blue |
| q | Check for secure seating. |
| q | Clipped onto fuel tank. |
| q | From fuel return pipe on fuel rail → Rep. Gr.24. |
| 10 - | Union nut, 75 Nm |
| q | Remove and install using union nut tool -3217- |
| 11 - | Connector |
| q | Black, 4-pin |
| q | For fuel gauge sender -G- and fuel system pressurisation pump -G6- |
| 12 - | Flange |
| q | Note installation position on fuel tank → Fig.. |
| q | Marked “V” and “R” on bottom for supply and return hose. |
| 13 - | Supply hose |
| q | Check for secure seating. |
| 14 - | Seal |
| q | Renew if damaged. |
| q | When installing, insert seal dry into fuel tank opening. |
| q | Moisten with fuel only when installing flange → Item. |
| 15 - | Return hose |
| q | Check for secure seating. |
| 16 - | 6 Nm |
| 17 - | Filler neck |
| q | With expansion tank and breather valve |
| 18 - | Breather line |
| q | Check for secure seating. |
| q | To junction between activated charcoal canister and solenoid valve 1 for activated charcoal canister → Anchor, Repairing parts of the activated charcoal filter system: engine code AJH. |
| 19 - | Seal |
| q | Renew if damaged. |
| 20 - | Retaining ring |
| 21 - | Non-return valve |
| q | Check for ease of movement |
| 22 - | Breather line |
| q | Check for secure seating. |
| 23 - | 25 Nm |
| 24 - | Fuel tank |
| q | When removing, support using engine and gearbox jack -V.A.G 1383 A- |
| 25 - | Securing strap |
| q | Note different lengths. |
| q | Note installation position. |
| 26 - | 20 Nm |
| 27 - | Bracket |
| q | For fuel filter |
| 28 - | Supply line |
| q | Black. |
| q | Check for secure seating. |
| q | To fuel supply pipe on fuel rail → Rep. Gr.24. |
| 29 - | Fuel filter |
| q | Fitting position: arrow indicates direction of flow |
| 30 - | Fuel gauge sender -G- |
| 31 - | Fuel delivery unit |
| q | Removing and installing → Chapter. |
| q | Checking fuel pump → Chapter. |
| 32 - | Filter strainer |
| q | Clean strainer if soiled. |
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