Exhaust Gas Recirculation Assembly Overview

Exhaust Gas Recirculation Assembly Overview

• Exhaust Gas Recirculation (EGR) is controlled by the Engine Control Module (ECM) 1 (J623) and ECM 2 (J624) via EGR vacuum regulator solenoid valve (N18) (electro-pneumatic) and EGR valve 2 (N213) (electro-pneumatic) to the mechanical EGR valves.

• The mechanical EGR valve with cone shaped valve plunger makes different opening diameters possible at different valve lifts.

• The components illustrated correspond to cylinder bank 1. They are a mirror image of the components for cylinder bank 2.





1 Intake connection with intake flap motor

Cylinder bank 1:

• Intake flap motor (V157)

Cylinder bank 2:

• Intake flap motor 2 (V275)

2 8 Nm

3 Seal

• Replace.

• Before installing, check the sealing surfaces for contamination and clean if necessary.

4 EGR vacuum regulator solenoid valve

• Checking mechanically, refer to --> [ Exhaust Gas Recirculation Valve Checking ] Testing and Inspection.

5 Intake manifold

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

6 20 Nm

7 Gasket

• Replace.

• Note installation position.

8 8 Nm

9 Exhaust manifold

• Exhaust manifold assembly overview, refer to --> [ Exhaust Manifold Assembly Overview ] Exhaust Manifold Assembly Overview.

10 8 Nm

11 20 Nm

12 Connecting pipe