Next time your driving her car, without her knowing of course, put it in park, turn the steering wheel all the way left and right with the window down. I bet you hear the upper strut bearings popping, BIG problem on the S70's. Of course don't tell her what your doing if she's with you, or my name either.........
Has she changed any tail light bulbs or front parking light bulbs yet? This is yet another BIG S70 problem, when you wash the car or it gets wet, water will seep inside the tail light lens clusters and fry the bulbs prematurely.
Oh yeah, and if your SRS light turns on watch out, they had a bad batch of crash sensors that could give you a face full of airbag without any warning.
But of course your not going to tell her my name, RIGHT???