Car is in the shop. Have not even made the 1st payment and there is a loud rattling noise coming from the engine when I brake at slow speeds. Sometimes, sounds seems like it is coming from the back of the car but mechanic said it has nothing to do with the brakes. They test drove it with me to confirm the noise.

Update from Oct 31, 2016: Cause: Loos suspension components. "Road tested vehicle with customer confirmed noise described. Checked for pertaining Service Bulletins and Recalls, none found. Searched in Nissan Data Base for related incidents and repairs, none found. Performed visual inspection of Front Drive Line/Suspension components, could not find damaged parts nor torn bushings. Road tested vehicle once more and noticed when incidents occurs, I [mechanic] could feel it through the steering wheel, slightly felt it on the brake pedal and could only hear it on the passenger (front) side. Lifted vehicle and checked components connected to steering rack and once more was unable to find any damaged parts. Resulted to tighten steering rack, front sway bar links, lower transverse links and front suspension member (nuts and bolts). Road tested vehicle and was unable to replicate symptom. No noise.