Hydraulic system

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 Components

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The hydraulic unit is located in the right-hand side of the luggage compartment. The system comprises also of two main hydraulic cylinders, which operate the soft top, two hydraulic cylinders to operate the sixth bow, two hydraulic cylinders for the soft top cover and one hydraulic cylinder to lock the soft top to the windscreen frame.

Fig 2: Identifying Hydraulic Unit

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The hydraulic unit comprises a pump block with two pressure reduction valves (for clockwise or anticlockwise), two logic shunt valves (XOR valves) and three solenoid valves, 1, 2 and 3. Component locations.

Fig 3: Hydraulic Unit - Circuit Diagram

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The three electro-hydraulic valves are functionally identical and they are used to control the flow of oil to the hydraulic cylinders.

The fluid reservoir with level indications on the side is attached to the pump block with a hose clip. Observe that only fluid with part no. (16) 89 96 860 Power steering fluid Pentosin CHF-11S may be used.