I have a 2015 V60 T5 Premier that has made this noise since approx 17000 miles. Now has 26800 miles, been in dealership service dept 4 times since Oct 2015, last time was from 5/2/16-6/3/16 and it's still ticking! The spark plugs have been replaced, suspension worked on, fuel pump, etc... List goes on and on. Volvo even sent "special" diagnostic tools to the dealership (a Volvo dealership) for further testing. Volvo field rep came to drive my car and deemed it as only happening under extreme (not normal) driving patterns and no further fault trace necessary. I have his handwritten report. Funny it happens every day under normal driving in Eco mode at 40-50 mph/ 1800-2300 rpms and it also in Performance mode between 3000-4000 rpms. I very clearly hear between 1-5 clicks, usually 3, every single day multiple times. I'm at the end of my rope with this but in principle I'm pressing dealership and will also now go to Volvo NA. Totally unacceptable to have a new car with these issues. Has anyone explored lemon law rights?