03/06/2024 17:05:14

Receiver Dryer and Desiccant (Remove and Replace)

Code de correction 18202002

  • 2023-08-28: Added image for clarity.
  • 2024-04-02: Added reminding of checking the pressure of A/C system before opening the accumulator.
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Remarque
The desiccant bag in the receiver dryer is a serviceable item and must be replaced every 2 years, whenever the system is opened to ambient air for an extended time, or when an A/C system leak has been fixed.
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Remarque
The desiccant is located in the RH condenser.

Dépose

  1. Placez le véhicule sur un pont élévateur, mais ne le soulevez pas tout de suite.
  2. Recover the A/C refrigerant from the vehicle. See Récupération et recharge du fluide frigorigène de climatisation (retrait et remplacement).
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    Note
    While the HVAC machine is recovering the refrigerant, perform the following:
    1. Remove the front underhood apron. See Tablier sous le capot - Avant (retrait et remplacement).
    2. Partially lift the vehicle.
    3. Remove the screw that attaches the fascia to the RH front fender (torque 1.5 Nm).
    4. Remove the bolt that attaches the RH portion of the fascia and applique to the fascia carrier (torque 4 Nm).
    5. Remove the RH plastic rivets (x5) that attach the RH aero shield to the lower valance.
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      Note
      Do not remove the last 3 plastic rivets on the LH side of the aero shield.
  3. Clean the area around the plug before removal.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    Pour éviter les blessures, il faut porter des lunettes de sécurité pour effectuer cette procédure.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    HFO-R1234yf and R134a are considered hazardous liquids and if handled incorrectly can cause serious injury. Suitable protective clothing, consisting of face and eye protection, heat-proof gloves, rubber boots and apron or waterproof overalls must be worn when carrying out operations on the air conditioning system.
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    Warning
    Assurez-vous qu'il n'y a pas de pression dans le système de climatisation avant d'effectuer les étapes suivantes.
  4. Remove and discard the plug and the desiccant bag.
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    CAUTION
    Enlevez et jetez les joints toriques.

Installation

La procédure d’installation est l’inverse de la procédure de retrait, à l’exception de ce qui suit :
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CAUTION
Install a new desiccant bag and a new plug (torque 12 Nm) immediately to prevent ingress of dirt and moisture.
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Note
Do not reuse the plug.
  1. Perform a system vacuum and leak check. See Récupération et recharge du fluide frigorigène de climatisation (retrait et remplacement).
  2. While the HVAC machine is running the vacuum and leak check, do the following:
    1. Reinstall the underhood aprons.
    2. Lower the vehicle.
  3. Charge the system with refrigerant. See Récupération et recharge du fluide frigorigène de climatisation (retrait et remplacement).
  4. Perform a cooling system thermal test. See Système de refroidissement – test thermique.