Leon Mk2
| Intake manifold: Assembly overview |
| 1 - | Screw for intake air temperature sender -G42- |
| q | 5 Nm |
| 2 - | Intake air temperature sender -G42- |
| 3 - | Activated charcoal filter solenoid valve 1 -N80- |
| q | With dual non-return valve; check → Chapter. |
| 4 - | Intake manifold |
| q | Removing and installing → Chapter |
| 5 - | The vacuum unit for air management flaps |
| q | Controller for the valve for the intake manifold flap -N316- |
| 6 - | Bolts for high-pressure pump |
| q | Replace |
| q | 10 Nm |
| 7 - | Connection hose for the fuel supply pipe, from the tank |
| q | From fuel tank |
| 8 - | Fuel pressure regulating valve -N276- |
| 9 - | Single piston high pressure pump |
| q | With fuel pressure regulating valve -N276- |
| q | In the fuel tank there is an electric fuel pump which sends fuel with a pressure of around 7 bar to the high pressure pump. |
| q | When fitting the high pressure pump, take care that no dirt enters the fuel system. |
| q | The fuel system must not be under pressure when installing the high-pressure pump; procedure for reducing fuel pressure → Chapter |
| q | The fuel pipes must not be under tension when fitting them |
| q | Removing and installing → Chapter |
| 10 - | Roller tappet |
| q | May remain stuck inside exhauster pump after removal of high-pressure pump, but can be removed |
| 11 - | Connecting piece for fuel supply pipe to fuel rail |
| q | Replace |
| q | 22 Nm |
| 12 - | High-pressure fuel pipe |
| q | The fuel pipes must not be under tension when fitting them |
| q | 18 Nm |
| 13 - | Intake manifold flap valve -N316- |
| 14 - | Injectors |
| q | Renew O-rings. |
| q | Ensure correct installation position |
| q | Removing and installing → Chapter |
| 15 - | Intake manifold support |
| 16 - | Intake manifold support bolt |
| q | 23 Nm |
| 17 - | Intake manifold support nut |
| q | 10 Nm |
| 18 - | Bolts for throttle valve module -J338- |
| q | 4 units |
| q | 5 Nm |
| 19 - | Throttle valve module -J338-, throttle valve drive for electric throttle operation -G186- |
| q | Throttle valve drive angle sender 1 for electric throttle -G187- and throttle valve drive angle sender 2 for electric throttle -G188- |
| q | After replacing the throttle valve control unit -J338-, the engine control unit -J623- must be adjusted once more; see the → Vehicle diagnostic tester |
| 20 - | Seal |
| q | Replace |
