Quote Originally Posted by Audiman35 View Post
Car has 47000 miles on it.
I meant the age of the battery.

Does the mmi turning the start stop off not just bring the circled a up in the dash, not an actual fault message?.
To protect the battery is not a fault but a regular operation. Therefore there is no additional fault message on the DIS, because the regular operation is to show the "slashed A" on the dashboard.

The most easiest way to check whether this is the problem or not is to replace the battery with a different one, and if the problem disappears, than the case can be closed. You don't need a new one, but another one from an Audi with the same specifications. Usually a car seller can do it for you.