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Home >> Porsche >> 2021 >> 718 Boxster Base, Automatic DCT Trans >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> 87 Air Conditioning -- 982 - BOXSTER/CAYMAN >> WM, 874319 Removing And Installing Compressor/Condenser Line (Section From Front Underbody Connection Point To Condenser Connection Point) >> General Warning Notes For Working On The Air-Conditioning System >> Notes
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General Warning Notes For Working On The Air-Conditioning System: Notes

WARNING: Refrigerant 
  • Danger of freezing 

→ Avoid contact with refrigerant.
→ Wear personal protective gear.
→ Observe the safety regulations for working on air-conditioned vehicles and handling refrigerant.
→ Observe the safety regulations for extraction and filling systems.
→ Observe the instructions for repairing air-conditioning systems and storing spare parts.
  1. Release locking lugs and remove control unit for garage door opener -1-  with electric plug connection connected -2-  from the bracket -arrow-  .
    G14955797Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  2. Drill out bracket for garage door opener control unit and remove the bracket.
  3. Remove reinforcement plate and supporting plate.
    G14955798Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 3.1 Unscrew fastening screws -1-  .
    2. 3.2 Screw off fastening nuts -2-  .
    3. 3.3 Remove reinforcement plate -arrow "A"-.
    4. 3.4 Unscrew fastening screw -1-  and remove supporting plate -arrow "A"-.
    G14955799Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  4. Remove sound absorber in the right wheel housing by pulling it downwards.
    • When loosening/tightening the refrigerant line, always work with the  > 9822 - assembly tool  where possible.
    • When loosening or tightening the refrigerant lines, always counter at connections to air conditioning components (e.g. on the condenser) using an open-ended wrench. 
  5. Unscrew and remove fastening screw -1-  at the front underbody connection point.
    G14955800Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Information 

    During removal: Close off refrigerant lines and connections using suitable stoppers.

    During installation: Do not remove stoppers from refrigerant lines and connections until shortly beforehand.

  6. Close off refrigerant lines using suitable stoppers.
    1. 6.1 Disconnect refrigerant lines at the front underbody connection point -arrow-  and close them off.

    Information 

    • When loosening/tightening the refrigerant line, always work with the  > 9822 - assembly tool  where possible.
    • When loosening or tightening the refrigerant lines, always counter at connections to air conditioning components (e.g. on the condenser) using an open-ended wrench. 
  7. Unscrew and remove fastening screw -1-  at connection point in wheel housing.
    G14955801Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Information 

    During removal: Close off refrigerant lines and connections using suitable stoppers.

    During installation: Do not remove stoppers from refrigerant lines and connections until shortly beforehand.

  8. Close off refrigerant lines using suitable stoppers.
    1. 8.1  Disconnect refrigerant lines at connection point in wheel housing -arrow-  and close them off.
  9. Disconnect refrigerant line.
    1. 9.1  Unscrew retaining pins for the bracket -arrow "A"-  and pull them out -arrow "B"-  .
      G14955802Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    2. 9.2  Release bracket -arrow "C"-  and open it -arrow "D"-  .
    3. 9.3  Release clamp -arrow "A"-  and open it -arrow "B"-  .
      G14955803Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    4. 9.4  Pull refrigerant line out of the brackets.

    Information 

    Working on the refrigerant circuit: 

    When removing components, close off all openings immediately using commercially available stoppers.

    Store air-conditioning system components in a dry and closed-off area.

    When fitting components, do not remove the stoppers until shortly before installation.

    Likewise, do not remove the protective foil from the desiccator until just before installation. The desiccator absorbs moisture from the air and is then useless.

    Do not carry out repairs in the open during damp weather.

    The desiccator should be replaced as soon as one component of the air conditioning system has been replaced or if the air conditioning system was open for > 20 minutes.

    Moisture in the refrigerant circuit not only leads to poor cooling, but oversaturation can also cause the desiccator to disintegrate and contaminate the air-conditioning system from inside. This can result in expensive and complicated repairs.

    Check sealing rings on the refrigerant lines for damage and replace them if necessary.

    Information 

    Before re-installing these air-conditioning system components, flush them out with nitrogen.

    Use a pressure reducer when working with nitrogen.

    Evacuate the refrigerant circuit according to instructions.

  10. Remove refrigerant line.
    1. 10.1  Unclip refrigerant line in the wheel housing -arrow-  and remove it.
    G14955804Courtesy of PORSCHE CARS NORTH AMERICA, INC.
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