Renault Clio: Expansion valve: Removal - Refitting

Renault Clio III (2005-2013) Service Manual / Air Conditioning / Air Conditioning / Expansion valve: Removal - Refitting

AIR CONDITIONING or CLIMATE CONTROL

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 the repair, 62A-1),
• (see Vehicle: Precautions for the repair) (01D, Mechanical introduction).

REMOVAL

I - REMOVAL PREPARATION OPERATION

• Drain the refrigerant circuit using the refrigerant charging station (see 62A, Air conditioning, Refrigerant circuit: Draining - Filling, 62A-10).
• Disconnect the battery (see Battery: Removal - Refitting) (80A, Battery).
• Remove:
  • the engine cover,
  • the windscreen wiper arms (see Windscreen wiper arm: Removal - Refitting) (85A, Wiping - Washing),
  • the scuttle panel grille (see Scuttle panel grille: Removal - Refitting) (56A, Exterior equipment),
  • the scoop under the scuttle panel grille (see Scoop under the scuttle panel grille: Removal - Refitting) (56A, Exterior equipment).

• Remove the mountings from the bulkhead soundproofing.
• Lift away the bulkhead soundproofing.
• Remove the bolts (1) from the expansion valve connecting pipes.
• Remove the connecting pipes from the expansion valve.

WARNING

In order to avoid any refrigerant leaks, do not damage (deform, twist, etc.) the pipe.

• Plug the openings of the connecting pipes and expansion valve.

WARNING

To prevent moisture from entering the system, place plugs on the cold loop components which are open to the air.

Note: Use blanking plugs for the fuel circuits with part no. 77 01 208 229 or 77 01 476 857 to plug any openings exposed to the open air. They must be clean. Do not use any which have already been used to plug a fuel circuit.

II - OPERATION FOR REMOVAL OF PART CONCERNED

• Remove:
  • the bolts (2) from the expansion valve,
  • the expansion valve.

WARNING

Do not lose the bolt when removing it: if the bolt falls into the engine compartment, it will generate a noise which will be heard by the customer. The engine will need to be removed in order to recover the bolt.

REFITTING

I - REFITTING PREPARATION 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.

• Clean the surface and seal of the pipe using ENGINE CLEANER (see Vehicle: Parts and consumables for the repair) (04B, Consumables - Products).

• Use a compressed air nozzle to blow on the surface and the seal of the connecting pipe.
• Lubricate the surface of the connecting pipe and the seal with air conditioning oil (see 62A, Air conditioning, Air conditioning: Parts and consumables for the repair, 62A-2).
• Remove the blanking plugs.

II - REFITTING OPERATION FOR PART CONCERNED

• Refit:
  • the expansion valve,
  • the expansion valve bolts (3) on the distribution unit.

Note: Gradually retighten the expansion valve mounting bolts so that the expansion valve is uniformly positioned on the air conditioning pipes.

• Tighten the expansion valve bolts.

III - FINAL OPERATION

• Fit the expansion valve connecting pipes.
• Refit the expansion valve connecting pipe bolts (4).
• Tighten the connecting pipe bolts.
• Fit the bulkhead soundproofing.
• Connect the battery (see Battery: Removal - Refitting) (80A, Battery).
• Fill up the refrigerant circuit using the refrigerant charging station (see 62A, Air conditioning, Refrigerant circuit: Draining - Filling, 62A-10).

Note: A summary table gives the quantities of refrigerant in the system according to the engine type (see 62A, Air conditioning, Air conditioning: Parts and consumables for the repair, 62A-2).

• Check that the air conditioning system is operating correctly (see 62A, Air conditioning, Air conditioning: Check, 62A-6).
• Check for leaks (see 62A, Air conditioning, Refrigerant circuit: Check, 62A-9).
• Refit:
  • the bulkhead soundproofing mountings,
  • the scoop under the scuttle panel grille (see Scoop under the scuttle panel grille: Removal - Refitting) (56A, Exterior equipment),
  • the scuttle panel grille (see Scuttle panel grille: Removal - Refitting) (56A, Exterior equipment),
  • the windscreen wiper arms (see Windscreen wiper arm: Removal - Refitting) (85A, Wiping - Washing),
  • the engine cover.

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