Cayenne S (9PA) V8-4.5L (2003)
1. Unscrew both refrigerant line fastening screws on the expansion valve.
2. Pull the refrigerant lines out of the expansion valve.
3. Unscrew the fastening screws for both refrigerant lines and pull out the refrigerant line.
4. Press together the clips on the heater pipe and push them down. Refer to, Tools.
5. Pull hoses off the lines.
6. Remove refrigerant lines -A, B- in an upward direction.
Removing Condenser/Evaporator Line (B - C)