2016 R1200GS Noisy Engine
I really can't be of much assistance as I don't know what you're hearing exactly. The water boxer does have it's own whirs & clanks and, if you're not used to it, I'm sure they could be disconcerting. My '09 GSA had a completely different set of noises except for the common first gear "clunk." As mentioned, you checked the oil level and that's what I'd have done. I believe I'd check with the dealer and tell him what you're hearing. I'll bet the chances are pretty good he'll say, "They all do that."
Keep us posted on the outcome.
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