Rear spring sensor malfunction can cause the rear suspension to sag requiring recalibration of the sensors.
2009 Saab 9-7x Problem Reports
Most Reported 2009 Saab 9-7x Problem Reports
Leaks in the air suspension can cause the air compressor to run constantly.
If a groaning noise is heard from the rear of the vehicle while making turns, the limited slip differential should be inspected. Components should be inspected and replaced as needed.
Porosity in the rear of the engine block can cause oil leakage around the rear engine cover. Porosity may be found at rear of the engine and the repair procedure in the service bulletin describes using RTV silicone sealant to fill the porosity. There is also an updated rear engine cover for when porosity is found on the gasket mating surface.