Golf Mk4
| Assembly overview - fuel rail with injectors (petrol operation) |
| 1 - | Retaining clip |
| q | Check for secure seating. |
| 2 - | Return line |
| q | Blue or with blue marking. |
| q | Secure with spring-type clips. |
| q | Check for secure seating. |
| q | To fuel delivery unit in fuel tank → Chapter. |
| 3 - | Supply line |
| q | Black with white marks. |
| q | Secure with spring-type clips. |
| q | Check for secure seating. |
| q | From fuel filter → Chapter. |
| 4 - | Fuel rail |
| 5 - | Air pipe |
| 6 - | To intake hose |
| 7 - | Air hose |
| q | For air shrouded injectors. |
| 8 - | Retaining clip |
| q | Ensure correct seating on injector and fuel rail. |
| 9 - | No. 4 cyl. injector -N33- |
| q | No. 1 cyl. injector -N30- |
| q | No. 2 cyl. injector -N31- |
| q | No. 3 cyl. injector -N32- |
| q | Air shrouded. |
| q | Checking injection rate and for leaks → Chapter. |
| q | If renewed clear fault memory → Chapter. |
| 10 - | O-ring |
| q | Renew. |
| q | Before installing moisten with clean engine oil. |
| 11 - | 8 Nm |
| 12 - | O-ring |
| q | Renew. |
| 13 - | Vacuum hose |
| q | To intake manifold upper part → Item. |
| 14 - | Fuel pressure regulator |
| q | If renewed clear fault memory → Chapter. |
| q | Checking → Chapter. |
