9-3 Aero AWD 2007-...
TopHaldex XWD proactive automatic all wheel drive. Rear differential can be locked using an electronically controlled multiplate clutch. Haldex gen. III 2007-2008, Haldex gen. IV starting from 2008.
Have you seen a better description of Saab 9-3 Aero Awd 2007-... in a paper magazine? Can you please scan it or take a photo and send it to 
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What the parts number/identification number has Haldex-4 unit at Saab 9-3 Turbo-X 2008 model year?