S211. One of my rear wheels has been squeaking, sounds like brake squeal but it's there when not braking and dissappears when you do. Took the wheel off to investigate today thinking the pads would be low but they look okay. It's hard to get the wheel to make the noise but every now and then when I turn it it lets out a sound similar to running your finger arouns the rim of a wine glass. It doesn't seem to be coming from the caliper area, more the top of the disc or even the hub. It seems more likely to make the sound when I turn the disc applying sideways pressure. The surround behind the disc isn't making contact with the disc. Also, my parking brake is a bit clunky. The pedal doesn't go down smoothly. Could something have gone ping on the parking brake mechanism?