Lower Intake Manifold Assembly Overview

Lower Intake Manifold Assembly Overview





1 Intake manifold, lower

• Removing and installing => [ Lower Intake Manifold with Fuel Rail ] Lower Intake Manifold with Fuel Rail.

• After installation, adapt both intake manifold runner position sensors in operating mode "Guided Fault-Finding" in "Adapting intake manifold runner position sensor"

2 Fuel rail

3 Fuel pressure sensor (G247)

4 High-pressure line

CAUTION!
• Before opening high pressure components of the fuel injection system, pressure must be relieved to residual pressure => [ High-Pressure Fuel Injection System, Pressure Relief ] Service and Repair.

• Then wrap a clean rag around the connection and relieve residual pressure by carefully loosening the connection.

• Do not change bend shape

• Tighten high-pressure lines => [ Hand-tighten union nuts of high-pressure
lines , and. ] Lower Intake Manifold with Fuel Rail.

5 10 Nm

6 Sleeve

7 10 Nm

8 2.5 Nm

9 10 Nm

10 Retaining bracket for fuel rail

11 Vacuum actuator for intake manifold runner control

12 Vacuum hose

• To Intake Manifold Runner Control (IMRC) valve (N316)

13 2.5 Nm

14 Intake manifold runner position sensor

• Left Intake manifold runner position sensor 2 (G512), right intake manifold runner position sensor (G336)

15 2.5 Nm

16 Seal

• Replace if damaged

• Lift out with screwdriver to replace

• Press in by hand

17 Seal

• Replace if damaged

• Lift out with screwdriver to replace

• Press in by hand

18 Seals

• Replace

19 Support ring

• Make sure it is seated properly

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

20 O-ring

• Replace

• Moisten with clean engine oil

21 Spacer ring

• Replace if damaged

22 Radial adjustment

• Replace if damaged

• Clip with support ring - 19 -

23 Combustion chamber seal

• Replacing => [ Fuel Injectors ] Service and Repair.

24 Fuel injector

Removing and installing => [ Fuel Injectors ] Service and Repair.