Intake Manifold: Service and Repair

NOTE: For additional information regarding the Removal and Installation procedure please refer to: Vehicle /Engine, Cooling, and Exhaust /Engine /Cylinder Head Assembly /Valve Cover / Service and Repair.
Service and Repair


Intake Manifold, Disassembling and Assembling







1 - Intake manifold.
- For Removing and Installing procedures refer to: Vehicle /Engine, Cooling, and Exhaust /Engine /Intake Manifold/ Service and Repair.
Service and Repair

2 - Seal.
- Always replace.

3 - Bearing cap.
- For Intake Manifold Change-Over Valve - N156 - barrel.

4 - Bracket.
- For engine cover mounting pin.

5 - Mounting pin, 5 Nm.
- For engine cover.

6 - 5 Nm.

7 - 23 Nm.

8 - Vacuum union.
- From brake booster.

9 - Vacuum union.
- From fuel system diagnosis pump.

10 - Vacuum union.
- From fuel pressure regulator junction piece.

11 - Vacuum union.
- From crankcase breather/Evaporative Emission (EVAP) Canister Purge Solenoid Valve 1 vacuum line junction piece.

12 - Throttle Valve Control Module - J338 -*.
- No cable cam plate for accelerator cable as this is an EPC system.
- When replacing, erase learned values and adapt Motronic Engine Control Module (ECM) - J220 - to Throttle Valve Control Module - J338 -.
- 6-pin connector.
- Gold plated terminals.
- Heated by coolant.

13 - 8 Nm.

14 - Vacuum line.
- To Intake Manifold Change-Over Valve - N156 -, item 2.

15 - Vacuum actuator
- For Intake Manifold Change-Over Valve - N156 -.

16 - Positioning lever.
- For change-over barrel.
- Check seated securely.

17 - Change-over barrel.

18 - Gasket.
- Observe installation position.
- replace if damaged.

19 - Vacuum reservoir.
- For Intake Manifold Change-Over Valve - N156 -.

20 - Dowel sleeve.
- To secure intake manifold.
- To locate gasket.

21 - 13 Nm.