Hi, Hope someone can help me out. I just had my first service about a week ago (had 3000 miles on it dealer demo). The noise started (day after service) as a small rattle kinda like plastic but as the days have progressed it has been louder almost metallic, chuckle sounding but not quite. Now it only does this when stone cold and if you shut it off cold and restart it the noise isn't there. I've tried to find loose plastic vibrating against metal but to no avail. No sound when warm sounds like an NT. Going crazy or should it go back to the servicing dealer? Has anyone else encountered this issue? Thanks in advance, Kevin