There is a replacement part available from the Ebay seller of the Estonian replacement heater cores, Swedish Autolamps for Less. The part is their number 9499406, $30 shipping included (a tad pricey for what it is, if you ask me, but you don't have to buy it). They claim to have beefed up some of the components from the original design. It is tough to tell if that is so, but the semi-circular arm does look a little more substantial than the original.
This will be the easiest repair you ever make to your Volvo.
Tools required: a Torx T25 driver.
Procedure: Lift up the armrest lid. Remove the two T-25 screw on the underside of the armrest -- one on each side. Pry the armrest cover slightly away from the plastic frame with your fingers -- you don't need to open up a gap of more than about 3/8" to be able to slide the old cupholder out and the new one in. Slide out the old cupholder assembly. Slide in the new cupholder assembly. Reinstall the two T-25 screws and torque tight. You're done and now have functioning cupholders. Total repair time -- less than 5 minutes.
Now you can enjoy that cup of coffee on the way to work.
Truth to tell, I probably could have survived without the replacement cupholder, but my car is a stick and I do take a few long highway trips a year in it. Functioning cupholders are a big plus on those trips.
