Renault Koleos Service Repair Manual: Particle filter: Cleaning

M9R

Exhaust

Note: Forced regeneration should only be carried out after the " SERVICE " warning light has come on accompanied by the " REGENERATE PARTICLE FILTER " message or the orange " CHECK EMISSIONS " warning light .

I - INSTRUCTIONS FOR CARRYING OUT FORCED REGENERATION OF THE PARTICLE FILTER

Precautions to be taken during forced regeneration of the particle filter

  • There are currently two additional kits for extracting exhaust gases in the workshop (see Garage equipment catalogue), both of which are approved for the high temperatures produced during particle filter forced regeneration.

    The two kits approved for particle filter regeneration are:

    • the particle filter kit for use with vehicles fitted with a single exit silencer,
    • the twin exhaust pipe kit for use with vehicles equipped with a twin exhaust pipe on the silencer.
IMPORTANT During forced regeneration of the particle filter, the temperature of the exhaust pipe rises significantly.

Always use one of the two kits approved for the high temperatures reached during forced regeneration, whether the operation is carried out in the workshop using an exhaust gas extractor, or outside the workshop.

Ensure that when in use, the kit is not touching the rear bumper when carrying out forced regeneration of the particle filter.

Twin exhaust pipe kit special features

Exhaust

Note: When using a twin exhaust pipe kit (1) on a single exhaust pipe:
  • that an exhaust gas extractor is fitted to openings (2) and (3) if forced regeneration is being carried out in the workshop,
  • that openings (2) and (3) are positioned to direct the hot exhaust gases away from another vehicle or a person, if the operation is being carried out outside the workshop.

II - PROCEDURE FOR FORCED REGENERATION OF THE PARTICLE FILTER USING THE CLIP DIAGNOSTIC TOOL

WARNING To prevent engine racing, check the engine oil level using the dipstick before running the forced regeneration command.

The engine oil level must be between the " MIN " and " MAX " marks on the dipstick.

  • If necessary, adjust the engine oil level.
  • Connect the Diagnostic tool to the vehicle.
  • Carry out forced regeneration of the particle filter.
Note: If required, the forced regeneration procedure may be stopped by pressing the engine Start button twice in succession.

 

Note: Strong odours and thick smoke may be released during forced regeneration of the particle filter.
  • When forced regeneration of the particle filter has finished, and using the Diagnostic tool :
    • deal with the present faults,
    • clear the stored faults.
IMPORTANT Wear heat protective gloves during the operation.
  • Remove the kit for extracting the high temperature exhaust gas.

M9R

  • Position the vehicle on a two-post lift .
  • Drain the engine.
  • Replace the oil filter.
  • Top up the engine oil.
WARNING Check the engine oil level using the dipstick to avoid any risk of the engine racing.

The engine oil level must be between the " MIN " and " MAX " marks on the dipstick.

    Particle filter: Parts description

    Particle filter pressure sensor: Removal - Refitting

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