Cousin wants to buy volvo S 60 2.4l turbo gasoline or D5

As mentioned in the title, my cousin is looking for an S 60 2.4l turbo petrol or a D5. I don’t know so well about the S 60. But what worries me is that I often read exactly the S 60 often has a problem with the throttle valves. I just wanted an S 60 Turbo petrol or D5 between 95 000km and 110 000km. How about the throttle valves now? Can problems with the throttle flap occur at such a few km.? Would the D5 or the 2.4l turbo be better? Would be nice if you could write down your experiences with the engines and in general S 60 to me or those who had to replace the throttle valve. (would be nice if you would mention certain repair costs) gruss jimmy