Intake Manifold Overview

Intake Manifold Overview

• If a fuel injector is removed, then the combustion chamber Teflon(R) seal and the support washer must always be replaced. Refer to => [ Combustion Chamber Teflon(R) Seal and Support Washer ] Combustion Chamber Teflon(R) Seal and Support Washer.

• Read the safety precautions before starting. Refer to => [ Fuel System ] Fuel System.

• Follow the guidelines for clean working conditions. Refer to => [ Clean Working Conditions ] Clean Working Conditions.






1 Bolt

• 10 Nm

2 Upper Intake Manifold

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

3 Bolt

• 10 Nm

4 Grommet

• Replace if damaged.

5 to the Brake Booster

6 from the EVAP canister purge regulator valve 1 (N80)

7 Intake Manifold Rear Support

8 Bolt

• 20 Nm

9 Bolt

• 7 Nm

10 Throttle Valve Control Module (J338)

• With the 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.

• Removing and installing, refer to => [ Throttle Valve Control Module J338 ] Service and Repair.

11 Seal

• Always replace.

12 Bolt

• 3.5 Nm

13 Vent Hose

• For the crankcase ventilation.

• With the positive crankcase ventilation heating element.

• From the cylinder head cover.

14 Seal

• Always replace.

15 Intake Manifold Front Support

16 Gasket

• Replace if damaged.

• Coat lightly with engine oil before installing and insert it into the upper intake manifold.

17 Gasket

• Always replace.

• Make sure it fits securely inside the lower intake manifold.

18 Lower Intake Manifold

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

19 Fuel Rail

• For cylinders 2, 4 and 6.

• Replace the fuel injectors springs (- item 3 - in the => [ Fuel Injector Overview, Cylinders 2, 4 and 6 ] Fuel Injector Overview, Cylinders 2, 4 and 6) before installing.

• Tighten the bolts uniformly, starting from the inside and working toward the outside.

• Fuel rail with injector overview. Refer to => [ Fuel Rail with Injector Overview ] Fuel Rail with Injector Overview.

20 Bolt

• 30 Nm + an additional 90° (1/4) turn.

• Always replace.

• Tighten uniformly, starting from the inside and working toward the outside.

21 Bolt

• 8 Nm

22 Gasket

• Replace if damaged.

• Coat lightly with engine oil before installing and insert it into the upper intake manifold.