rattling rear noise

Hello, I know that this topic has been discussed in the past. My foreign auto mechanic has determined that the noise coming from my 2008 passion is from the brakes. He says that there is no "spring" to hold the parts in place, which most other vehicles typically have. Thus they just bounce...

Hi to all: I have a new 2009 Smart Passion. I hear a rattling noise coming from the back of the car, something similar to something rubbing against the muffler Has someone else experienced a similar sound from the rear area in their new Smarts? If so, what are the next steps to silent it? Thanks!