O2 sensor 16174 from Bosch is identical to the one on SAAB 9-5. High quality, genuine OEM. But buy Bosch 15733 instead. Why?because for 16174, you need to disconnect the connector and reconnect the new one. The connector is usually difficult to remove (it sticks to the socket). You also need to put the wires of the new sensor under the metallic ring which sticks the wire to a water hose (to keep the wire cool), and it may not be so easy to do.for 15733 on the other hand, all you need to do is cut the wire before the metallic ring and connect the new sensor to it (15733 comes with the connector for connecting the wires). The sensor at the end of the wire is identical between 15733 and 16174.Needless to mention that 15733 is much cheaper!