2016 Audi A6 3.0T Quattro randomly stalling at stops / “Faulty Auto Start/Stop” message – anyone seen this?
Hey everyone, I’m trying to figure out an intermittent issue with my 2016 Audi A6 3.0T Quattro and wanted to see if anyone here has dealt with something similar.
The issue happens pretty randomly. Sometimes the car will drive perfectly fine for days, then out of nowhere it’ll stall/shut off when I come to a stop. I’ve noticed it seems more likely after driving the car for a longer period during the day.
A few things I’ve noticed:
I get a “Faulty Auto Start/Stop” message sometimes
The car occasionally shakes a little when I park before shutting off
It’s about a 50/50 chance whether it immediately restarts after stalling
If it stalls and I just hit the start button while still “on,” it cranks but struggles
If I fully power the car off first, then start it again, it usually fires right back up normally
The problem comes and goes — it can disappear for days and then happen repeatedly again
Battery was tested around 85%
Battery was replaced/reprogrammed already