WARNING: This page is about a different car, the 2011 Saab 9-3 and 2010 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Hydraulic System Main Components
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Hydraulic system
Fig 2: Identifying Hydraulic System Electrical Components