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 the fuel pressure in the high pressure area, refer to => [ Before Opening High Pressure Fuel Injection System ] Before Opening High Pressure Fuel Injection System.

• Do not change bend shape

• Never bend the bracket from the fuel line.

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

• Tightening

7 Bolt

• 9 Nm

8 Threaded Support

• 40 Nm

9 Stud Bolt

10 Nut

• 9 Nm

11 Fuel Rail Retaining Bracket

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 - item 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 the 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 specification: union nut on the high pressure lines, 27 Nm