I'm not that long into owning my RS6 and I am occasionally hearing a light "thud" (perhaps too strong a word) when driving in drive and the car downshifts... not sure exactly what gear, but based on my speed both times likely 5 to 4, or 4 to 3. I've never owned a performance vehicle with an automatic, and wonder if this is normal, or symptomatic of a bigger issue. All aspects of the tranny seem fine otherwise, but have some concerns over this noise.

Any input / experience is appreciated.

Thanks