Renault Koleos Service Repair Manual: Expansion valve: Removal - Refitting

Renault Koleos Service Repair Manual / Air conditioning / Air conditioning / Expansion valve: Removal - Refitting

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) of the bulkhead insulation.
  • Separate the bulkhead insulation.

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 pipesfrom 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.

II - OPERATION FOR REMOVAL OF PART CONCERNED

Air conditioning

  • Remove:
    • the bolts (4) from the expansion valve,
    • the expansion valve (5) .

REFITTING

I - REFITTING PREPARATION OPERATION

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

II - REFITTING OPERATION FOR PART CONCERNED

  • Refit:
    • the expansion valve,
    • the expansion valve bolts.
Note: Gradually tighten the bolts of the expansion valve so that the expansion valve is positioned evenly on the distribution unit.
  • Torque tighten the bolts of the expansion valve (4 N.m).

III - FINAL OPERATION

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.
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 on the refrigerant pipes.
  • Connect the pipes 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).
  • 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) .

Evaporator: Removal - Refitting

AIR CON 01 or AIR CON 02

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

Air conditioning

Note: The evaporator cannot be separated from the distribution unit (1) .
  • If removing or replacing the evaporator (see 61A, Heating, Air distribution unit: Removal - Refitting, page 61A-25) .
    Compressor: Removal - Refitting

    Expansion valve - condenser connecting pipe: Removal - Refitting

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