Mine started doing this at about 8 months old/6k miles. It coincided with the onset of winter and is notably worse in cold weather. Flagged it at first service for them to look at but was told by the tech it was normal/car settling after exit. Be interested to hear what your dealer says.
thats got to be complete and utter b*ll*cks - mines 2 years old now (25k miles) and it doesn't do that