Hi everyone, long time lurker and first time poster.
My 2021 RS7 with 24k miles would appear to have suffered BSG failure today. All the warnings mentioned in this post appeared almost at once and the car cut out soon after. Audi assist were with me within 30 minutes and confirmed the 12v battery is not charging. The car is being recovered to Stirling Audi tomorrow morning.
I will say that the car has been faultless to this point and hopefully,with the information from this forum, the repair will be reasonably quick and at no cost to myself.
I hope to update with good news soon,
Standfree.