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Home >> Porsche >> 2021 >> Taycan Turbo S >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> 87 Air Conditioning -- Y1A - TAYCAN (Y1A) >> WM, 87491903 Removing And Installing Valve (EAV 5) >> Installing Valve (EAV 5)

Installing Valve (EAV 5)

NOTE: Opened refrigerant system for repairs. 
  • Risk of moisture getting into the refrigerant system. 
  • Risk of contaminating the refrigerant circuit. 
  • Risk of saturation and irreparable damage to desiccator. 
  • Irreparable damage to the desiccator can damage the compressor and evaporator. 

    → After opening the refrigerant circuit, close off the refrigerant lines/connections immediately using the relevant stoppers. To avoid contaminating the refrigerant circuit, the stoppers for the different refrigerants must be stored and used separately.

    → The desiccator must be replaced if the air humidity is high and if the refrigerant circuit is left open for a long time.

  1. Fit valve (EAV 5) -1-  to holder -2-  .
    1. 1.1 Position valve (EAV 5) -1-  , fit and tighten screws -3-  .

      > Tightening torque 8 Nm (6 ftlb.) 

    G15565881Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Valve (EAV 5)

  2. Install refrigerant line -1-  .
    1. 2.1 Replace O-rings on refrigerant line -1-  .
    2. 2.2 Push refrigerant line -1-  onto valves -2 and 3-  .
    3. 2.3 Fit and tighten screw -4-  .

      > Tightening torque 8 Nm (6 ftlb.) 

    G15565882Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Refrigerant line from valve EAV 3 to valve EAV 5.

  3. Install holder -1-  with valves -2 and 3-  .
    1. 3.1 Position holder -1-  .
    2. 3.2 Fit and tighten screws -7-  .

      > Tightening torque 8 Nm (6 ftlb.) 

    3. 3.3 Clip in clip -6-  .
    4. 3.4 Connect and lock electric plug connections -4 and 5-  .
    G15565883Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Holder with valves

  4. Secure refrigerant line -1-  .
    1. 4.1 Replace O-ring on refrigerant line -1-  .
    2. 4.2 Push refrigerant line -1-  onto valve (EAV 5) -2-  .
    3. 4.3 Fit and tighten screw -4-  .

      > Tightening torque 8 Nm (6 ftlb.) 

    4. 4.4 Clip in clip -3-  .
    G15565884Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Refrigerant line on valve (EAV 5)

  5. Secure refrigerant line -1-  .
    1. 5.1 Replace O-ring on refrigerant line -1-  .
    2. 5.2 Push refrigerant line -1-  onto valve (EAV 3) -2-  .
    3. 5.3 Fit and tighten screw -4-  .

      > Tightening torque 8 Nm (6 ftlb.) 

    4. 5.4 Clip in clip -3-  .
G15565885Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Refrigerant line on valve (EAV 3)