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Home >> Porsche >> 2018 >> Panamera Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> 87 Air Conditioning - Coupe -- 971 - PANAMERA (971) >> WM, 873419 Removing And Installing Air Conditioning Compressor >> Installing Air Conditioning Compressor >> Notes

Installing Air Conditioning Compressor: Notes

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. The air-conditioning compressor is installed in reverse order.
  2. Secure the air-conditioning compressor.
    G15875027Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Tightening torques

    1. 2.1 Tighten fastening screw -2-  used to secure the air-conditioning compressor to the engine to the prescribed tightening torque > Tightening torque 20 Nm (15 ftlb.) 
    2. 2.2 Tighten fastening screw -1-  used to secure the air-conditioning compressor to the engine to the prescribed tightening torque > Tightening torque 20 Nm (15 ftlb.) 
    3. 2.3 Tighten fastening screws used to secure refrigerant lines -C and D-  to the air-conditioning compressor to the prescribed tightening torque (second mechanic required) > Tightening torque 20 Nm (15 ftlb.) 
  3. Install drive belt for air-conditioning compressor.
    1. 3.1 Fit drive belt -1-  on all pulleys and deflection roller. The drive belt must run below the lower deflection roller -4-  .
      G15875028Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Removing and installing drive belt for air-conditioning compressor

    2. 3.2 Fit change-over ratchet with socket-wrench insert Torx T55 in the recess on the eccentric adjuster -6-  and turn anti-clockwise -arrow-  until the tensioning roller -2-  snaps over to the stop.
      G15875029Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Tensioning drive belt for air-conditioning compressor

    3. 3.3 Tighten fastening screw -5-  securing tensioning roller to holder to the prescribed tightening torque > Tightening torque 25 Nm (19 ftlb.) 
      G15875030Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Tensioning drive belt for air-conditioning compressor

    4. 3.4 Install protection cap -3-  .
      G15875031Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Removing and installing drive belt for air-conditioning compressor

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