Soldato
Couple of problems on the Briskoda forums, lots of ones being replaced some people lost all power etc. If you're buying new and in warranty you'll be fine as I think they've ironed out the majority of the problems now.
After a favour
When you're next in the car from cold could you accelerate until its in 3rd (4th may be preselected of course) and then just let off the accelerator/lightly brake.
Is there any graunching noise as it slows or selects 2nd? This is what I have and most prevalent from cold, but still sounds a bit clunky when warm. Not sure if its central differential or gear change but it doesn't sound as I would expect (and I've driven many more off road orientated 4x4s in my time)
There were no noises/clunks or anything. Perfectly smooth and silent .
For reference, it's a C7 A6 3.0TFSI S-Tronic. So that's the DL501 gearbox, with the post 2009 Quattro all-wheel-drive setup (40/60 front-to-rear torque split).