I have a 2018 A6 sport 3.0 superchargred….
The issue is that when you stop, 1 out of 10 times will not restart when you release the brake and the message on the dash reads...
"Start-stop system deactivated: Please restart engine manually".
Can be a bit of a problem when attempting to pull out into traffic. Dealer has no idea...has anyone has this issue?

 

Hey, I have not experienced that but, when i start my vehicle up, the start and stop wont work until the engine it at running temp. then i would have to manually turn it off.