Lower Intake Manifold Section Overview

Lower Intake Manifold Section Overview






1 Bolts

• 2.5 Nm

2 Intake Manifold Runner (IMR) Position Sensor

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

3 Seal

• Replace if damaged

• Lift out with screwdriver to replace

• Press in by hand

4 Sleeve

5 Fuel Pressure Sensor (G247)

• 22 Nm

• Oil the threads

6 Bracket

7 Bolt

• 9 Nm

8 High-Pressure Lines

• 27 Nm

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

• The fuel pressure must be reduced to residual pressure before opening the high pressure area of the fuel injection system. Refer to => [ Releasing Pressure in High Pressure Area ] Releasing Pressure In High Pressure Area.

• Reduce the fuel pressure in the high pressure area, refer to => [ Releasing Pressure in High Pressure Area ] Releasing Pressure In High Pressure Area.

• Connectors should not show any signs of damage

• Do not change the shape of the line

• Removing and installing, refer to => [ High Pressure Line ] Service and Repair

• Counter hold the connecting pieces when loosening and tightening fuel line

• Tighten fuel line connecting pieces before installing the fuel line

9 Bolt

• 9 Nm

10 Nut

• 9 Nm

11 Bolt

• 9 Nm

12 Bolt

• 2.5 Nm

13 Fuel Rail Retaining Bracket

14 Threaded Connection

• 40 Nm

15 Fuel Rail

16 Gasket

• Replace

17 Intake Manifold Lower Section

• Removing and installing, refer to => [ Intake Manifold Lower Section, with Fuel Rail ] Intake Manifold Lower Section, With Fuel Rail

• The intake manifold flaps must be completely open when installing the intake manifold lower section

18 Gasket

• Replace

19 Support Ring

• Make sure it fits correctly.

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

20 O-ring

• Replace

• Coat with clean engine oil

21 Spacer Ring

• Replace if damaged

22 Fuel Injector

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

23 Upper Sealing Washer

24 Lower Sealing Washer

25 Locking Ring

26 Combustion Chamber Seal

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

27 Seal

• Replace if damaged

• Lift out with screwdriver to replace

• Press in by hand

28 Actuator Lever

• For the vacuum actuator

29 Vacuum Hose

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

30 Intake Manifold Runner Control Vacuum Actuator

Tightening Specification, Intake Manifold Lower Section





- Tighten the bolts and nuts - arrows - in a diagonal sequence on the intake manifold lower section and in steps.

• 10 Nm