Hi, I'm experiencing an annoying metallic rattle from underneath my 2011 Grand Cmax Titanium X Auto. It seems to be coming from the back off side, and sounds like a loose bracket or something. I cant visually see anything loose underneath, and when I brake it stops the rattle. It was suggested it was the anti roll bar link arm bushes were worn, but local main dealer have checked and they are fine. Any ideas please?