Renault Koleos Service Repair Manual: Particle filter: Parts description

M9R

1. Particle filter pressure sensor
2. Upstream pressure measurement hose
3. Downstream pressure measurement hose
4. Upstream pressure measurement connection
5. Downstream pressure measurement connection
6. Temperature sensor upstream of the particle filter
7. Temperature sensor downstream of the particle filter

Particle filter: Removal - Refitting

M9R

REMOVAL

I - OPERATION FOR REMOVAL OF PART CONCERNED

• Position the vehicle on a two-post lift.
• Disconnect the battery.

II - OPERATION FOR REMOVAL OF PART CONCERNED

• Remove the nuts (1) from particle filter bracket on the catalytic converter.

• Remove the nuts (2) from the silencer bracket on the particle filter assembly.

• Disconnect:
  • the particle filter pressure measurement hoses (3) ,
  • the particle filter upstream temperature sensor connector (4) .
• Unclip the wiring from the upstream temperature sensor.
• Remove the rubber mounting bush support nuts (5) from the particle filter.

• Remove:
  • the bolt and the nut (6) from the downstream temperature sensor support,
  • the downstream temperature sensor support (7) .

• Disconnect the particle filter downstream temperature sensor connector (8) .
• Unclip the downstream temperature sensor wiring at (9) .

• Remove:
  • the " particle filter - flexible connection pipe - upstream/ downstream pressure measurement pipes
  • upstream/downstream temperature sensors " assembly,
  • the seal between the catalytic converter and the particle filter,
  • the seal between the particle filter and the silencer,
  • the rubber mounting bush support from the particle filter support.

• Remove:
  • the upstream and downstream temperature sensors (10) from their adapters,
  • the upstream and downstream pressure measurement pipes (11) ,
  • the bolts of the upstream and downstream pressure measurement pipes (12) .

REFITTING

I - REFITTING PREPARATION OPERATION

• Always replace the seals.
• Using abrasive pads, clean the mating faces:
  • of the catalytic converter and the particle filter,
  • of the particle filer and the silencer.
• Degrease the mating faces using surface cleaner and clean cloths.

II - REFITTING OPERATION FOR PART CONCERNED

• With particle filter removed, refit:
  • the upstream/downstream temperature sensors of the particle filter assembly
  • the upstream/downstream pressure measurement pipes onto their adapters.
• Torque tighten:
  • the upstream/downstream pressure measurement pipe unions (33 N.m),
  • The upstream/downstream pressure measurement pipe bolts (6 N.m).
• Refit:
  • the rubber mounting bush support of the particle filter support,
  • the " particle filter - flexible connection pipe - upstream/ downstream pressure measurement pipes
  • upstream/downstream temperature sensors " assembly with new seals.
• Connect the downstream temperature sensor connector.
• Clip on the downstream temperature sensor wiring at (9) .
• Refit the downstream temperature sensor mounting.
• Torque tighten the temperature sensor mounting bolt (4 N.m).
• Clip on the wiring of the upstream temperature sensor.
• Connect the particle filter pressure measurement hoses.
• Refit:
  • the particle filter bracket nuts on the catalytic converter,
  • the silencer bracket nuts on the particle filter.
• Torque tighten:
  • the particle filter bracket nuts on the catalytic converter (65 N.m),
  • the silencer bracket nuts on the particle filter (45 N.m),
  • the rubber mounting bush nuts on the particle filter (14 N.m).
• Make sure that there is no contact with the underbody.

III - FINAL OPERATION.

• Connect the battery.
• Reinitialise the particle filter parameters using the Diagnostic tool.