I bought a 2012 C30 back in December, and it was in well maintained condition, 74k miles. It was missing a couple of very minor interior plastic bits, which I have ordered and replaced, but this piece was in the cup holder when I bought it, and I have no idea where it goes. The number, if you can't read it, is 08639055 LH, which doesn't match any Volvo part numbers that I can find. Any idea what this is and where it goes?

 

I just went outside to verify, but that is at the bottom of the seat on the back side. Helps pull the seatbelt along as you are moving the seat forward. Sad that I knew what it was already since I have only been a Volvo guy for all of 2 weeks today.