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Intake Manifold, Lower Section, With Fuel Rail Assembly Overview






Intake Manifold, Lower Section, with Fuel Rail Assembly Overview






1 Intake manifold lower section

Left and right, removing and installing, refer to => [ Intake Manifold, Lower Section, with Fuel Rail ] Intake Manifold, Lower Section, With Fuel Rail

2 Sleeve

3 Fuel Pressure Sensor (G247)

20 Nm

4 Bracket

5 Bolt

9 Nm

6 High-pressure line


There is a risk of injury because the fuel is under very high pressure.

Before opening high pressure area of the fuel injection system, fuel pressure must be relieved to residual pressure.

Reduce fuel pressure in the high pressure area=> [ Before Opening High Pressure Fuel Injection System ] Service and Repair.

Do not change bent shape

Never bend bracket from the fuel line.

If bracket is bent, or if the fuel line is being replaced, then the bracket must be replaced.

Tightening => [ High pressure line, installing ]

7 Bolt

9 Nm

8 Threaded support

40 Nm

9 Stud bolt

10 Nut

9 Nm

11 Retaining bracket for fuel rail

12 Bolt

2.5 Nm

13 Bolt

9 Nm

14 Sleeve

15 Fuel rail

16 Seals

Replace

17 Support ring

Make sure it is seated properly

The fuel rail wields force via the support ring to hold the fuel injector tightly in the cylinder head.

18 O-ring

Replace

Coat with clean engine oil

19 Spacer ring

Replace if damaged

20 Combustion chamber seal

Replacing => [ Fuel Injectors ] Service and Repair.

21 Radial adjustment

Replace if damaged

Clip with support ring - 17 -

22 Fuel injector

Removing and installing, refer to => [ Fuel Injectors ] Service and Repair

High pressure line, installing





- First tighten the high pressure line union nut by hand.

- Make sure the high pressure line does not have tension.

- Use torque wrench (V.A.G 1331) with the 17 mm open end wrench socket (V.A.G 1331/2) to tighten the high pressure line on the fuel rail.

Tightening Specifications High pressure line union nut: 27 Nm