Installing Heating/Fresh Air Unit (Completely)

Information 

Before re-installing the component, check the O-rings on the refrigerant lines for damage and replace them if necessary.

The O-rings on the refrigerant lines must be coated with refrigerant oil.

All refrigerant lines and connections must be closed off using suitable stoppers during removal.

Stoppers for lines and connections must not be opened until shortly before installation.

1. Installation is performed in reverse order. Pay particular attention to the following:
   1. 1.1  Replace O-rings.
   2. 1.2  Fit screw securing heating/fresh-air unit to centre tunnel -1-  and tighten.
      • Tightening torque 6 Nm (4.5 ftlb.) 

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Screws on heating/fresh-air unit (driver's side)

   3. 1.3  Fit screw securing air intake tract holder to heating/fresh-air unit -2-  and tighten.
      • Tightening torque 3.6 Nm (2.6 ftlb.) 

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Air intake tract holder on heating/fresh-air unit

   4. 1.4  Fit screws securing compressor/evaporator line to expansion valve -2-  and tighten.
      • Tightening torque 12 Nm (9 ftlb.) 

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Compressor/evaporator line on expansion valve