Golf Mk6
| Assembly overview - injectors |
Caution
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| 1 - | Seal |
| q | In cylinder head cover. |
| q | Removing and installing → Chapter. |
| 2 - | Copper washer |
| q | Renew. |
| 3 - | O-ring |
| q | Renew. |
| 4 - | Injector |
| q | When removing and installing, always renew the following components and seals/O-rings: „copper seal“, „O-ring for injector bore“, „O-ring for injector return connection“. |
| q | The following components and seals/O-rings must always be renewed when an injector is renewed: „clamping piece“, „copper seal“, „O-ring for injector shaft“ and „O-ring for injector return connection“. |
| q | Before re-using „high-pressure injection line“, inspect taper seats visually for damage such as transverse scores or corrosion; always renew if damaged. |
| q | If they are to be reinstalled, the injectors, high-pressure lines and clamping pieces must only ever be refitted on the same cylinder. |
| q | Removing and installing → Chapter. |
| 5 - | O-ring |
| q | Renew. |
| 6 - | Fuel return line |
| q | To fuel tank. |
| q | Must not be kinked, damaged or blocked. |
| q | Do not dismantle. |
| q | After exchanging, engine must be run at idling speed for approx. 2 minutes to bleed fuel system. Then check fuel return lines for leaks. |
| 7 - | 8 Nm + turn 180° further. |
| q | Renew. |
| 8 - | Clamping piece |
| q | If they are to be reinstalled, the injectors and clamping pieces must only ever be refitted on the same cylinder. |
| q | When an injector is renewed, the clamping piece must be renewed at the same time. |
| q | Installation position → Fig.. |
| 9 - | High-pressure line, 28 Nm |
| q | Between fuel rail and injectors. |
Note| t | Observe cylinder specific markings when reusing high-pressure lines. |
| t | The high-pressure lines may be re-used after the following checks: |
| t | Check taper seat of respective high-pressure line for deformation and cracks. |
| t | The line hole must not be deformed, constricted or damaged. |
| t | Corroded lines should no longer be used. |
| q | Install so that component is not under tension. |
| 10 - | 22 Nm |
| 11 - | Fuel rail |
| q | Removing and installing → Chapter. |
| 12 - | Fuel return hose |
| 13 - | Fuel pressure regulating valve -N276-, 80 Nm. |
| q | Always renew after removing |
| q | Removing and installing → Chapter. |
| 14 - | O-ring |
| q | Renew. |
| 15 - | High-pressure line, 28 Nm |
| q | Between high-pressure pump and fuel rail |
Note| t | Observe cylinder specific markings when reusing high-pressure lines. |
| t | The high-pressure lines may be re-used after the following checks: |
| t | Check taper seat of respective high-pressure line for deformation and cracks. |
| t | The line hole must not be deformed, constricted or damaged. |
| t | Corroded lines should no longer be used. |
| 16 - | 8 Nm |
| q |
| 17 - | Fuel pressure sender -G247-, 100 Nm |
| q | Always renew after removing |
| q | Removing and installing → Chapter. |
| 18 - | Grommet |
| q | In cylinder head cover. |
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