Notes On General Repairs
WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
The refrigerant circuit of the air-conditioning is only to be emptied and opened if this is necessary due to safety measures or if components of the refrigerant circuit have to be replaced.
The air-conditioning refrigerant circuit also remains closed during all other standard vehicle repair work.