Recently my brakes have become a bit squeaky, whilst annoying they seem to be preforming fine.
But over the last couple of days I get an intermittent squeaking whilst driving, seems to be coming from the wheel area. So today I jacked the car up and when rotating the wheels they grid a bit, like when you've been on a wet muddy ride, is this normal?
There's plenty of pad life left and there doesn't appear to be any play in the wheel bearings, I guess there could be a sticky piston? but anything else to check?

