I have a 2014 Turbo S that I bought 2 weeks ago. I have noticed this sound when the car starts but goes away once it warms up. I thought the rattling noise might be in the exhaust, but when I had the sharkwerks exhaust installed the sound stayed. I don't have a problem going to the dealer it's just 90 minutes away from me. Here's a clip of the sound can anyone help?

 

Here is video

 

Sounds a bit like cold exhaust burble and that could very much be it as you mentioned it goes away once warmed up. If it get's worse with time then go see the dealer.

 

If you listen past the exhaust tone there is a metallic rattling noise....

 

Sounds like something is loose. Does not sound like the exhaust. There is a metallic
chatter that can be heard

 

Don`t let it be worse,get it faster to the dealer check it.

 

I personally can't hear it on the video, but if it's metallic and goes away with heat, my bet is a slightly loose heat shield somewhere. Probably gonna be a pain in the *** to figure out.

 

I took it to the dealer yesterday morning. I think it has something to do with the AC.....when the air is on the rattle is louder, once the car warms up it goes away.