Intake Manifold Overview

Intake Manifold Overview

Intake Manifold Tuning (IMT) valve (N156) connector. Refer to => [ Vacuum System Overview ] [1][2]Diagrams.






1 Intake Manifold

• With vacuum reservoir

• Check the vacuum reservoir for leaks using the hand vacuum pump (VAS 6213).

• Removing and installing, refer to => [ Intake Manifold ] Intake Manifold.

2 From Cylinder Head Cover

3 Crankcase Vent Valve

• With the Positive Crankcase Ventilation (PCV) heating element (N79).

4 Seal

• Replace

5 Bolt

• 10 Nm

6 Cap

• For the change over roller of intake manifold change over

7 Seal

• Replace

8 Bolt

• 20 Nm

9 Low Pressure Connection

• For the brake booster

10 Low Pressure Connection

• To the exhaust flap valve 1.

11 Low Pressure Connection

• To vacuum reservoir

12 Intake Manifold Support

13 Low Pressure Connection

• For the Evaporative Emission (EVAP) canister purge regulator valve 1 (N80).

14 Vacuum Hose for Leak Detection Pump (LDP) (V144)

15 Non-Return Valve

• Black connection faces toward T piece

16 From Exhaust Door Valve 1 (N321)

• Refer to => [ Vacuum Control Unit, Individual Components ] Service and Repair.

17 Throttle Valve Control Module (J338)

• With the Electronic Power Control (EPC) throttle drive (G186) , EPC throttle drive angle sensor 1 (G187) and EPC throttle drive angle sensor 2 (G188).

• When replacing, adapt the Engine Control Module (ECM) to the throttle valve control module. Refer to "Guided Functions" in the vehicle diagnostic tester.

18 Bracket

19 Bolt

• 10 Nm

20 Vacuum Actuator

• For the variable intake manifold

• Checking vacuum actuator for intake manifold flaps, refer to => [ Intake Manifold Flap Vacuum Actuator, Checking ] Testing and Inspection.

21 To Intake Manifold Tuning (IMT) Valve (N156)

• => [ (Item 3) To the Intake Manifold ] [1][2]Diagrams

22 Control Lever

• For the change over roller.

• Ensure the lever is securely seated.

23 Change-Over Roller

24 Gasket

• Replace if damaged

25 To Vacuum Reservoir

• For the variable intake manifold.

• Check the vacuum reservoir for leaks using the hand vacuum pump (VAS 6213).

26 Alignment Bushing

• For the intake manifold mount

• For attaching the seal

27 Bolt

• 13 Nm