once in a while when I come to a complete stop with '10 ra I hear a clucking noise coming from under the car, closer to the back. What is that and is it someting to be worried about?

 

Sub'd for an answer as I sometimes have a sound like this as well.

 

uh... I would recommend you have another person drive it and stop in front of you (once you can understand the circumstances and can replicate them to makes the sound).

Then you have at least left rear/right rear or center place to start looking (and shaking parts).

I assume you already checked the obvious stuff - the loose stuff in the trunk and then inspected the spare tire well for loose stuff...

 

I'm pretty sure it's got something to do with the brakes. It doesn't happen all the time, it seems to be more common when coming to a quick stop. I'm gonna take it in for my peace-of-mind inspection and mention it to them.

 

I gonna guess it could be warped rotors, or some bad rear struts?

 

^warped rotors won't 'clunk' - they shimmy the steering wheel and/or make a pulsing feel in the brake pedal.

 

I have that similar open clunk noise and yes I think its related to the brakes. I had a thought that it might be hydraulics related to the diff but that's a random guess .

I also get a similar noise if I'm in 6th (sports mode) cruising and I take my foot off the accelerator where in normal mode it wont make the noise which I assume is clutch pressure.

 

I have the same noise but I don't think it's brakes, I think it's more to do with the drivetrain or transmission coz it happens in 6th when I'm coasting and when I stop or sometimes go to take off. It's sound to me like it's the transmission disengaging and then re-engaging

 

If I'm not mistaken the SST disengages when you come to a stop. I'm pretty sure you're referring to the same noise I'm accustomed to occasionally hearing, and I believe it's the transmission. The sound reminds me of a loose control arm.

 

The more I hear it the less I think it has to do with my brakes. I try to coast to a stop most times, using as little brake pressure as possible and I still get the noise. It sometimes doesn't occur until a few seconds after being completely stopped.