11 71 100 Removing and installing/renewing exhaust-gas recirculation cooler (N47D20 K/U/O/T 1)

Necessary preliminary work:

Release screws (1).

Installation note:

Replace gasket.

Tightening torque: 11 61 2AZ .

Fig 1: Identifying Screws On Exhaust-Gas Recirculation Cooler

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Loosen screws (1) on exhaust manifold.

Installation note:

Grease screws with ASSEMBLY PASTE 4.2 .

Tightening torque: 11 71 1AZ .

Fig 2: Identifying Exhaust Manifold Screws

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Loosen the electric changeover valve (2) at the retaining clip (1) and pull off in direction of arrow.

Detach vacuum line (3) from electric changeover valve (2).

Release screw (4).

Tightening torque: 11 00 4AZ .

Fig 3: Detaching Vacuum Line From Electric Changeover Valve

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Release coolant lines (2 and 4) from exhaust-gas recirculation valve.

Fig 4: Identifying Screws On Exhaust-Gas Recirculation Valve

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Release screw (1).

Tightening torque: 11 00 4AZ .

Fig 5: Identifying Exhaust-Gas Recirculation Cooler And Screw

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Release screw (1).

Tightening torque: 11 00 4AZ .

Installation note:

Replace pipe neck on EGR cooler.

Ensure that the pipe neck is mounted without tension.

Fig 6: Identifying Exhaust-Gas Recirculation Cooler And Screw

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Fig 7: Exhaust-Gas Guide Module Screw Sequence

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Note screw sequence at the exhaust-gas guide module.

Screwed connections in sequence (1 to 5).

Assemble engine.