I have an 06 S60 T5, 195k, pretty much stock. A few months ago I had an issue where my rear driver side brake caliper wouldn't release, and it was grinding the old pads into the rotor and heating everything up a lot and was, I thought, the cause of the excessive brake dust on the rear driver side rim. Long story short, I replaced all four rotors, all new pads all around, and a brand new caliper in the rear, professionally installed, which came with bleeding the brakes. Everything was redone, but I still have some serious brake dust on just that one rim. As in you wash the car, take it for a five minute drive, and that one wheel is covered in so much dust it looks brown. Also, when I went to fill up the tires the other day that one rim had gotten so hot it burned my hand when I touched it. This is clearly not normal, but what could be causing it? The other three corners are normal, and this has been an issue for months now. My parking brake is really bad and needs replaced, but could some sort of contact within that system be causing so much dust?