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