My 550 s4's parking break it won't release. There is a small part that is suppose to disengage brake when the brake is pressed and pushed all the way down. It pushes the tip that is in the sprocket out of the kog releasing the brake. This small piece has a stiff piece of wire connect to it. In my case this piece of wire is bent flat. Does anyone know were or what this wire goes or does. I've looked for drawing or a piture on line without success. My dealer has a parking break assembly ordered but not sure it needs the whole assembly. nothing is broke that I can see and by holding this small piece in place the brake releases.