Renault Koleos Service Repair Manual: Catalytic converter: Removal - Refitting

Renault Koleos Service Repair Manual / Engine and peripherals / Exhaust / Catalytic converter: Removal - Refitting

M9R

Exhaust

IMPORTANT Consult the safety and cleanliness advice and operation recommendations before carrying out any repair.

REMOVAL

I - REMOVAL PREPARATION OPERATION

  • Position the vehicle on a two-post lift.
  • Disconnect the battery.
  • Remove:
    • the engine cover
    • the windscreen wiper arms
    • the scuttle half-grille
    • the windscreen wiper mechanism
    • the scoop under the scuttle panel grille

Exhaust

  • Remove:
    • the bolts (1) from the turbocharger heat shield
    • the turbocharger heat shield
    • the oxygen sensors
    • the engine undertray
    • the front right-hand wheel
    • the front right-hand wheel arch liner
    • the front right-hand wheel driveshaft

Exhaust

  • Remove:
    • the bolts (2) from the front right-hand wheel driveshaft relay bearing,
    • the front right-hand wheel driveshaft relay bearing,
    • the particle filter .

Exhaust

  • Remove:
    • the catalytic converter heat shield bolts (3) ,
    • the catalytic converter heat shield.

Exhaust

  • Remove:
    • the nut (4) and the bolts (5) of the catalytic converter mounting,
    • the catalytic converter mounting.

4X2 TRANSMISSION

Exhaust

  • Remove the bolts (6) from the turbocharger cooling pipe.
  • Move aside the turbocharger cooling pipe.
  • Remove:
    • the catalytic converter mounting bracket bolts (7) from the cylinder block,
    • the catalytic converter mounting bracket bolts.

4X4 TRANSMISSION

Exhaust

  • Remove the bolts (8) from the turbocharger cooling pipe.
  • Move aside the turbocharger cooling pipe.
  • Remove:
    • the bracket bolts (9) of the cylinder block transfer box and the transfer box,
    • the transfer box bracket.

II - OPERATION FOR REMOVAL OF PART CONCERNED

Exhaust

  • Loosen the catalytic converter nuts (10) .
  • Remove the catalytic converter studs of the turbocharger using a roller-type stud removal tool.

Exhaust

  • Remove:
    • the catalytic converter bracket nuts (11) ,
    • the catalytic converter half-clips (12) .
  • Move the catalytic converter towards the rear of the vehicle.

Exhaust

  • Remove:
    • the catalytic converter on the right-hand side of the vehicle,
    • the seal between the catalytic converter and the turbocharger.

REFITTING

I - REFITTING PREPARATION OPERATION

  • Clean and degrease the bearing faces of:
    • on the turbocharger,
    • on the catalytic converter in case of reuse,
    • of the particle filter,
    • of the silencer.
  • Always replace:
    • the catalytic converter studs,
    • the catalytic converter nuts,
    • the seal between the catalytic converter and the turbocharger,
    • the seal between the catalytic converter and the particle filter,
    • the seal between the particle filter and the silencer,
    • the catalytic converter mounting nut.

II - REFITTING OPERATION FOR PART CONCERNED

  • Refit:
    • the catalytic converter on the brackets,
    • the new seal between the turbocharger and the catalytic converter,
    • the new catalytic converter studs onto the turbocharger.
  • Torque tighten the studs of the catalytic converter on the turbocharger (15 N.m) using a roller-type stud removal tool.
  • Refit the new catalytic converter nuts on the turbocharger.
  • Torque tighten the catalytic converter nuts on the turbocharger (21 N.m).
  • Refit:
    • the catalytic converter half-clamps on the catalytic converter,
    • the catalytic converter bracket nuts.
  • Torque tighten the catalytic converter bracket nuts (21 N.m).

4X2 TRANSMISSION

  • Refit:
    • the catalytic converter mounting bracket,
    • the catalytic converter mounting bracket bolts on the cylinder blocks.
  • Torque tighten the catalytic converter mounting bracket bolts on the cylinder block (50 N.m).
  • Refit the turbocharger cooling pipe bolts.
  • Torque tighten the turbocharger cooling pipe bolts (10 N.m).

4X4 TRANSMISSION

  • Refit:
    • the transfer box bracket,
    • the transfer box bracket bolts on the cylinder block and the transfer box.
  • Torque tighten:
    • the transfer box bracket bolts on the transfer box (48 N.m).
    • The transfer box bracket bolts on the cylinder block (50 N.m).
  • Refit the turbocharger cooling pipe bolts.
  • Torque tighten the turbocharger cooling pipe bolts (10 N.m).

 

  • Refit:
    • the catalytic converter mounting,
    • the new catalytic converter mounting nut,
    • the bolts of the catalytic converter mounting.
  • Torque tighten:
    • the catalytic converter mounting nut (51 N.m),
    • the catalytic converter (mounting bolts51 N.m).
  • Refit:
    • the catalytic converter heat shield,
    • the catalytic converter heat shield bolts.
  • Torque tighten the catalytic converter heat shield bolts (6 N.m).
  • Refit:
    • the seal between the catalytic converter and the particle filter,
    • the particle filter,
    • the front right-hand wheel driveshaft relay bearing,
    • the front right-hand wheel driveshaft relay bearing bolts.
  • Torque tighten the front right-hand wheel driveshaft relay bearing bolts (44 N.m).
  • Refit:
    • the front right-hand wheel driveshaft
    • the front right-hand wheel arch liner
    • the front right-hand wheel
    • the engine undertray
    • the oxygen sensors
    • the turbocharger heat shield
    • the turbocharger heat shield bolts.
  • Torque tighten the turbocharger heat shield bolts7 (N.m).
  • Refit:
    • the scoop under the scuttle panel grille
    • the windscreen wiper mechanism
    • the scuttle half-grille
    • the windscreen wiper arms
    • the engine cover.
  • Connect the battery.

2TR

Exhaust

IMPORTANT Consult the safety and cleanliness advice and operation recommendations before carrying out any repair.

REMOVAL

I - OPERATION FOR REMOVAL OF PART CONCERNED

  • Position the vehicle on a two-post lift .
  • Remove the engine undertray.

II - OPERATION FOR REMOVAL OF PART CONCERNED

Exhaust

  • Remove the catalytic converter bracket nuts (1) on the connector pipe.

Exhaust

  • Remove:
    • the silencer bracket nuts (2) on the catalytic converter,
    • the catalytic converter,
    • the seal between the connector pipe and the catalytic converter,
    • the seal between the catalytic converter and the silencer.

REFITTING

I - REFITTING PREPARATION OPERATION

  • Always replace the seals.

II - REFITTING OPERATION FOR PART CONCERNED

  • Refit:
    • the catalytic converter on the connector pipe with a new seal,
    • the catalytic converter bracket nuts on the connector pipe.
    • the catalytic converter on the silencer with a new seal,
    • the silencer bracket nuts on the catalytic converter.
  • Torque tighten:
    • the catalytic converter bracket nuts on the connector pipe (45 N.m),
    • the silencer bracket nuts on the catalytic converter (45 N.m).

III - FINAL OPERATION.

  • Refit the engine undertray.
    Exhaust: Precautions for the repair

    Intermediate pipe: Removal - Refitting

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