Golf Mk4
| Vehicles with four-wheel drive |
| 1 - | Connector |
| q | Black, 4-pin. |
| 2 - | Connector |
| q | Black, 2-pin. |
| 3 - | Return hose bracket |
| 4 - | Return hose |
| 5 - | Gravity/overflow 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 - | Breather line |
| q | Check for secure seating. |
| q | Clipped onto top of fuel tank. |
| q | To active charcoal filter → Item. |
| 7 - | O-ring |
| q | Renew. |
| 8 - | Cap |
| 9 - | Seal |
| q | Renew if damaged. |
| 10 - | Securing bolt |
| 11 - | Tank flap unit |
| q | With rubber cup. |
| 12 - | Breather valve |
| q | To remove valve unclip sideways out of support. |
| q | Remove cap before installing → Item. |
| q | Checking → Fig.. |
| 13 - | Earth connection |
| q | Check for secure seating. |
| 14 - | 10 Nm |
| 15 - | Union nut, 80 Nm |
| q | Remove and install using union nut tool -3217-. |
| 16 - | Fuel gauge sender 2 -G169- |
| q | Note installation position on fuel tank → Fig.. |
| q | To remove, pull supply hose off fuel pump, unclip return hose bracket out of fuel pump and separate 2-pin connector → Chapter |
| q | Only renew complete with supply and return hose. |
| q | Checking: → Current flow diagrams, Electrical fault finding and Fitting locations. |
| 17 - | Seal |
| q | Renew if damaged. |
| q | Moisten with fuel when installing. |
| 18 - | Breather line |
| q | Clipped onto top of fuel tank. |
| q | Check for secure seating. |
| 19 - | Fuel tank |
| q | When removing, support using engine and gearbox jack -V.A.G 1383 A-. |
| q | Removing and installing → Chapter. |
| 20 - | 25 Nm |
| 21 - | Securing strap |
| q | Note differing lengths. |
| 22 - | Clamping washer |
| 23 - | Heat shield |
| 24 - | Retaining strut |
| 25 - | Supply line |
| q | Black. |
| q | Check for secure seating. |
| 26 - | Fuel filter |
| q | Fitting position: arrow indicates direction of flow. |
| 27 - | Screw-type clip |
| 28 - | Supply hose |
| q | Press release button on connecting piece to pull off fuel pump. |
| 29 - | Fuel delivery unit |
| q | Removing and installing → Chapter. |
| q | Checking fuel pump → Chapter. |
| q | Clean strainer if soiled. |
| 30 - | Supply line |
| q | Clipped onto fuel tank. |
| q | Check for secure seating. |
| q | Black. |
| q | To pull off flange, press release button on connecting piece. |
| q | To fuel supply pipe on fuel rail → Item. |
| 31 - | Return line |
| q | Blue or with blue marking. |
| q | Clipped onto side of fuel tank. |
| q | Check for secure seating. |
| q | Secure with spring-type clips. |
| q | From fuel return pipe on fuel rail → Item. |
