I'm having what I believe to be a brake issue on my 2012. At slow speeds it sounds like a metal on metal grinding noise on the front right, but I do not see any signs of scrapes on the rotor. I think im just needing new pads as I can feel it in the brake petal when I press the brakes when moving at ~5mph. I ordered some carbotech pads, but just want to be sure that is the issue. Please look at the following picture I took of the front right brake setup, there is a gold colored clip/tab. Is this a wear indicator, or did something break off? I looked on the drivers side and do not see one over there, is this normal?