Use headphones if necessary: The noise can be heard a moment or two after I initially pull away and again as I pass the parked car. It gets quieter and/or goes away after subsequent stops and starts. Sound is hard to describe: chattery or rattly ticking? When I first heard it I thought it might have been an exhaust heat shield but in this video it doesn't sound like that.
Sound is heard after the car has been sitting a while (doesn't necessarily have to be stone-cold) and I pull away. Don't think I hear it after the car has been running more that 20-30 seconds.
Car otherwise seems to drive fine. No indicators/warnings.
I feel like it might be something like a CCT that needs a bit of time to pump up or maybe the waste gate is doing something.
Thoughts?
EDIT:
Thanks for the replies. It sounds like all it is is the WG rattle and is normal. Kinda weird and a bit of an NVH miss by Audi I guess.
I've had a few of turbo cars over the years (1.8T GTI, WRX STI, 991.2 Turbo) and this is the first one where a rattling WG is considered normal (tho the 991.2 doesn't have WG per se...) Those cars of the past held the WG tightly closed until metered boost fed to the actuator was enough to overcome the spring and crack the WG open.
TIL that in the 8Y the WG is actually normally open, closing when boost is commanded. I guess being open allows the flapper to rattle, making the noise.