Polo Mk3
| Removing and installing fuel tank with attachments and fuel filter |
| 1 - | Sealing cap |
| 2 - | Retaining ring |
| 3 - | Tank flap unit |
| q | Removing and installing → General body repairs, exterior; Rep. Gr.55 |
| 4 - | Breather line |
| q | To activated charcoal filter |
| t | Engine codes: ADX, AEA, AEV → Item |
| t | Engine codes: AEE, AER, AEX, AKV, ALL, ANX, APQ → Item |
| 5 - | Gravity/overflow valve |
| q | To remove, release locking lug and unclip valve upwards out of filler neck |
| q | Check valve for through-flow valve vertical: open, valve tilted 90 °: closed |
| 6 - | Earth connection |
| 7 - | 4 Nm |
| 8 - | Fuel gauge sender -G- |
| q | Adjusting: → Current flow diagrams, Electrical fault finding and Fitting locations |
| 9 - | Return hose/line |
| q | Blue or with blue marking. |
| q | From injection unit or fuel rail → Engine - Mixture preparation; Rep. Gr.24 |
| 10 - | Union nut, 75 Nm |
| q | Remove and install using union nut tool -3217- |
| 11 - | Flange |
| q | Note installation position on fuel tank → Chapter |
| 12 - | Corrugated tube |
| q | Must not touch the fuel tank, otherwise pump noises will be transferred. |
| 13 - | Seal |
| q | Moisten with fuel when installing |
| q | Renew if damaged |
| 14 - | Fuel delivery unit |
| q | Removing and installing → Chapter |
| q | Checking fuel pump → Chapter |
Note| Ensure, on completion of all work on the fuel delivery unit and fuel gauge that the corrugated tube between the fuel delivery unit and flange does not touch the fuel tank (transfer of pumping noises). |
| 15 - | Fuel filter |
| q | Installation position: arrow points in direction of flow. |
| 16 - | Supply line |
| q | Black |
| q | To injection unit or fuel rail → Engine - Mixture preparation; Rep. Gr.24 |
| 17 - | 3 Nm |
| 18 - | Fuel tank |
| q | Removing and installing → Chapter |
| q | Press lock washer from heat shield firmly to pin on vehicle floor. |
| 19 - | 25 Nm |
| 20 - | Protective boot |
| q | After installing filler neck push over fuel tank filler neck |
| 21 - | Filler neck |
| q | With non-return valve. |
| 22 - | Breather valve |
| q | Checking → Chapter |
| q | To remove pull locking latch lightly to inside -arrow- and pull valve out |
| 23 - | O-ring |
| q | Renew if damaged |
| 24 - | Cup |
| q | For filler neck |
