Renault Koleos Service Repair Manual: Pressure relief valve - compressor connecting pipe: Removal - Refitting

Renault Koleos Service Repair Manual / Air conditioning / Air conditioning / Pressure relief valve - compressor connecting pipe: Removal - Refitting

M9R, and AIR CON 01 or AIR CON 02

Air conditioning

IMPORTANT To avoid any risk of damaging the systems, apply the safety and cleanliness instructions and the operation recommendations before carrying out the repair.

REMOVAL

I - REMOVAL PREPARATION OPERATION

  • Position the vehicle on a two-post lift (see Vehicle: Towing and lifting) (02A, Lifting equipment).
  • Drain the refrigerant circuit using the refrigerant charging station (see 62A, Air conditioning, Coolant circuit Draining - Refilling, page 62A-11) .
  • Disconnect the battery (see Battery : Removal - Refitting) (80A, Battery).

Expansion valve - intermediate pipe connecting pipe

  • Remove:
    • the windscreen wiper arms (see Windscreen wiper arm: Removal - Refitting) (85A, Wiping - Washing),
    • the scuttle panel half-grille (see Scuttle half-grille: Removal - Refitting) (56A, Exterior equipment),
    • the windscreen wiper mechanism (see Windscreen wiper mechanism: Removal - Refitting) (85A, Wiping - Washing),
    • the scoop under the scuttle panel grille (see Scoop under scuttle panel grille: Removal - Refitting) (56A, Exterior equipment).

Air conditioning

  • Remove the nut (1) of the bulkhead insulation.
  • Separate the bulkhead insulation.

II - OPERATION FOR REMOVAL OF PART CONCERNED

1 - Compressor - intermediate pipe connecting pipe

Air conditioning

  • Remove the bolt of the pipe union (2) .
WARNING In order to avoid any refrigerant leaks, do not damage (deform, twist, etc.) the pipe.
  • Disconnect the compressor - intermediate pipe connecting pipe from the expansion valve - intermediate pipe connecting pipe.
WARNING To prevent moisture from entering the system, place plugs on the cold loop components which are open to the air.
  • Fit plugs into the openings.

Air conditioning

  • Remove the bolt from the pipe union (3) .
  • Disconnect the compressor - intermediate pipe connecting pipe from the compressor.
  • Fit plugs into the openings.

2 - Expansion valve - intermediate pipe connecting pipe

Air conditioning

  • Remove:
    • the bolt (4) of the pipe union,
    • the pipe union (5) .
WARNING In order to avoid any refrigerant leaks, do not damage (deform, twist, etc.) the pipe.
  • Disconnect the expansion valve - intermediate pipe connecting pipe (6) from the expansion valve.
WARNING To prevent moisture from entering the system, place plugs on the cold loop components which are open to the air.
  • Fit plugs into the openings.

Air conditioning

  • Remove the bolt (7) from the clip.

Air conditioning

  • Remove the bolt (8) from the pipe union.
  • Disconnect the expansion valve - intermediate pipe connecting pipe from the compressor - intermediate pipe connecting pipe.
  • Fit plugs into the openings.

REFITTING

I - REFITTING PREPARATION OPERATION

  • Always replace the seals on the refrigerant connecting pipes.
  • Lubricate the seals using recommended air conditioning oil to make fitting easier.

II - REFITTING OPERATION FOR PART CONCERNED

WARNING Do not remove the blanking plugs from each component until the last moment.

Also, do not remove the components from their packaging until they are to be fitted to the vehicle.

1 - Compressor - intermediate pipe connecting pipe

  • Remove the plugs from the openings on the side concerned.
WARNING To avoid any leaks, check that the pipe surface is sound before positioning the new seal. The surface must be clean and scratch free.
  • Fit new seals to the refrigerant connecting pipes.
  • Connect the compressor - intermediate pipe connecting pipe on the compressor.
  • Refit the bolt of the compressor - intermediate pipe connecting pipe union.
  • Torque tighten the bolt of the compressor - intermediate pipe connecting pipe union on the compressor (4 N.m).
  • Remove the plugs from the openings on the side concerned.
  • Refit the bolt of the pipe union.
  • Connect the compressor - intermediate pipe connecting pipe on the expansion valve - intermediate pipe connecting pipe.
  • Torque tighten the bolt of the compressor - intermediate pipe connecting pipe union on the expansion valve - intermediate pipe (connecting pipe4 N.m).

2 - Expansion valve - intermediate pipe connecting pipe

  • Remove the plugs from the openings on the side concerned.
WARNING To avoid any leaks, check that the pipe surface is sound before positioning the new seal. The surface must be clean and scratch free.
  • Fit new seals to the refrigerant connecting pipes.
  • Connect the expansion valve - intermediate pipe connecting pipe on the compressor - intermediate pipe connecting pipe.
  • Remove the bolt from the pipe union.
  • Torque tighten the bolt of the pipe union (4 N.m).
  • Refit the bolt of the clip.
  • Connect the expansion valve - intermediate pipe connecting pipe on the expansion valve.
  • Refit:
    • the pipe union,
    • the bolt of the pipe union.
  • Torque tighten the bolt of the pipe union on the expansion valve (4 N.m).

III - FINAL OPERATION.

Expansion valve - intermediate pipe connecting pipe

  • Fit the bulkhead seal in its original position.
  • Refit:
    • the nut of the bulkhead insulation,
    • the scoop under the scuttle panel grille (see Scoop under scuttle panel grille: Removal - Refitting) (56A, Exterior equipment),
    • the windscreen wiper mechanism (see Windscreen wiper mechanism: Removal - Refitting) (85A, Wiping - Washing),
    • the scuttle panel half-grille (see Scuttle half-grille: Removal - Refitting) (56A, Exterior equipment),
    • the windscreen wiper arms (see Windscreen wiper arm: Removal - Refitting) (85A, Wiping - Washing).
  • Connect the battery (see Battery : Removal - Refitting) (80A, Battery).
Note: When replacing a pipe, add 10 ml of the recommended oil to the quantity of oil recovered.
  • Fill the refrigerant circuit using the refrigerant charging station (see 62A, Air conditioning, Coolant circuit Draining - Refilling, page 62A-11) .
  • Set the control of the passenger compartment blower unit to the maximum speed.
  • Check that the air conditioning system is operating correctly (see 62A, Air conditioning, Air conditioning: Check, page 62A-6) .
  • Check for leaks (see 62A, Air conditioning, Coolant circuit check, page 62A-9) .

2TR, and AIR CON 01 or AIR CON 02

Air conditioning

IMPORTANT To avoid all risk of damage to the systems, apply the safety and cleanliness instructions and operation recommendations before carrying out any repair (see 62A, Air conditioning, Air conditioning: Precautions for repair, page 62A-1) .

REMOVAL

I - REMOVAL PREPARATION OPERATION

  • Position the vehicle on a two-post lift (see Vehicle: Towing and lifting) (02A, Lifting equipment).
  • Drain the refrigerant circuit using the refrigerant charging station (see 62A, Air conditioning, Coolant circuit Draining - Refilling, page 62A-11) .
  • Disconnect the battery (see Battery : Removal - Refitting) (80A, Battery).
  • Remove:
    • the windscreen wiper arms (see Windscreen wiper arm: Removal - Refitting) (85A, Wiping - Washing),
    • the scuttle half-grille (see Scuttle half-grille: Removal - Refitting) (56A, Exterior equipment),
    • the windscreen wiper mechanism (see Windscreen wiper mechanism: Removal - Refitting) (85A, Wiping - Washing),
    • the scoop under the scuttle panel grille (see Scoop under scuttle panel grille: Removal - Refitting) (56A, Exterior equipment).

Air conditioning

  • Remove the nut (1) from the bulkhead insulation.
  • Separate the bulkhead insulation.

II - OPERATION FOR REMOVAL OF PART CONCERNED

Air conditioning

  • Remove:
    • the bolt (2) of the pipe union,
    • the pipe union (3) .
WARNING In order to avoid any refrigerant leaks, do not damage (deform, twist, etc.) the pipe.
  • Disconnect the connecting pipe (4) from the expansion valve.
WARNING To prevent moisture from entering the system, place plugs on the cold loop components which are open to the air.
  • Fit plugs into the openings.

Air conditioning

  • Remove the bolt (5) from the connecting pipe clip.
  • Unfasten clip (6) .

Air conditioning

  • Remove the nut (7) from the pipe union.
WARNING In order to avoid any refrigerant leaks, do not damage (deform, twist, etc.) the pipe.
  • Disconnect the expansion valve - compressor connecting pipe from the compressor.
WARNING To prevent moisture from entering the system, place plugs on the cold loop components which are open to the air.
  • Fit plugs into the openings.

REFITTING

I - REFITTING PREPARATION OPERATION

  • Always replace the seals on the refrigerant connecting pipes.
  • Lubricate the seals using recommended air conditioning oil to make fitting easier.

II - REFITTING OPERATION FOR PART CONCERNED

WARNING Do not remove the blanking plugs from each component until the last moment.

Also, do not remove the components from their packaging until they are to be fitted to the vehicle.

  • Remove the plugs from the openings on the side concerned.
WARNING To avoid any leaks, check that the pipe surface is sound before positioning the new seal. The surface must be clean and scratch free.
  • Fit new seals to the refrigerant connecting pipes.
  • Connect the expansion valve - compressor connecting pipe to the compressor.
  • Refit the nut of the pipe union.
  • Torque tighten the nut of the expansion valve - compressor connecting pipe union on the compressor (4 N.m).
  • Engage clip (6) .
  • Refit the bolt of the connecting pipe clip.
  • Remove the opening plugs on the side concerned.
  • Connect the expansion valve - compressor connecting pipe to the expansion valve.
  • Refit:
    • the pipe union,
    • the bolt of the pipe union.
  • Torque tighten the bolt of the pipe union on the expansion valve (4 N.m).

III - FINAL OPERATION

  • Fit the bulkhead insulation in its original position.
  • Refit:
    • the nut of the bulkhead insulation,
    • the scoop under the scuttle panel grille (see Scoop under scuttle panel grille: Removal - Refitting) (56A, Exterior equipment),
    • the windscreen wiper mechanism (see Windscreen wiper mechanism: Removal - Refitting) (85A, Wiping - Washing),
    • the scuttle half-grille (see Scuttle half-grille: Removal - Refitting) (56A, Exterior equipment),
    • the windscreen wiper arms (see Windscreen wiper arm: Removal - Refitting) (85A, Wiping - Washing).
  • Connect the battery (see Battery : Removal - Refitting) (80A, Battery).
Note: When replacing a pipe, add 10 ml of the recommended oil to the quantity of oil recovered.
  • Fill the refrigerant circuit using the refrigerant charging station (see 62A, Air conditioning, Coolant circuit Draining - Refilling, page 62A-11) .
  • Set the control of the passenger compartment blower unit to the maximum speed.
  • Check that the air conditioning system is operating correctly (see 62A, Air conditioning, Air conditioning: Check, page 62A-6) .
  • Check for leaks (see 62A, Air conditioning, Coolant circuit check, page 62A-9) .
    Expansion valve - condenser connecting pipe: Removal - Refitting

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