Polo Mk5 16L BiFuel Fuel Tank Assembly Overview
| Assembly overview - fuel tank |
| 1 - | Retaining clip |
| 2 - | Cap |
| 3 - | Seal |
| q | Renew if damaged. |
| 4 - | Securing bolt |
| 5 - | Tank flap unit |
| q | With rubber cup. |
| q | Removing and installing → General body repairs, exterior; Rep. gr.55. |
| 6 - | Gravity valve |
| q | To remove valve unclip upwards out of support. |
| Check valve for through-flow. |
| q | Valve vertical: open. |
| q | Valve tilted 45°: closed. |
| 7 - | Earth connection |
| q | Check for secure seating. |
| 8 - | Breather line |
| q | Check for secure seating. |
| 9 - | Activated charcoal filter |
| q | Location: in rear right wheel housing. |
| 10 - | 10 Nm |
| 11 - | Breather line |
| q | Clipped onto fuel tank. |
| q | Check for secure seating. |
| 12 - | 25 Nm |
| 13 - | Fuel tank |
| q | When removing, support using engine and gearbox jack -V.A.G 1383 A-. |
| q | Removing and installing → Chapter. |
| q | Fuel system must be bled if fuel tank is renewed → Chapter. |
| 14 - | Securing strap |
| 15 - | Breather line |
| q | Check for secure seating. |
| 16 - | Fuel filter |
| q | With pressure regulator. |
| q | Installation position: arrow indicates direction of flow. |
| q | Fuel system must be bled if fuel tank is renewed → Chapter. |
| 17 - | Supply line |
| q | Black |
| q | Check for secure seating. |
| q | To fuel rail. |
| 18 - | 5 Nm |
| q | For fuel filter clamp |
| 19 - | Seal |
| q | Renew if damaged. |
| q | When installing, fit dry in fuel tank opening. |
| q | Moisten with fuel only when installing flange. |
| 20 - | Fuel gauge sender -G- |
| q | Removing and installing → Chapter. |
| q | Adjust: → Current flow diagrams, Electrical fault finding and Fitting locations |
| 21 - | Fuel delivery unit |
| q | Removing and installing → Chapter. |
| q | Clean strainer if soiled. |
| q | Checking fuel pump → Chapter. |
| q | Note installation position on fuel tank → Fig.. |
| 22 - | Return line |
| q | Blue |
| q | Clipped onto side of fuel tank. |
| q | Check for secure seating. |
| 23 - | Supply line |
| q | Black |
| q | Clipped onto side of fuel tank. |
| q | Check for secure seating. |
| 24 - | Union nut, 80 Nm |
| 25 - | 10 Nm |
| 26 - | Breather valve |
| q | Check → Fig.. |
| q | To remove press locking latch lightly -arrow- and pull valve out. |
Note
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