Hi All
Audi q8 owner here 2019 mild hybrid. I have the exact same issue and was stranded on a busy road without being able to put even hazard lights on. AA told me def alternator issue. Changed battery this did not help much. Start stop issue was my first symptom. Spoke with both Bristol and Bath branches, both saying same thing you need to tow car for diagnostic and we will asses and let you know the costs. Bristol mentioned that they maybe able to speak with Audi UK and see if this is covered with extended warranty and if there is any goodwill can offer. Which branch would you recommend and who should I be speaking with. Any help would be greatly appreciated. From past posts I can see Bath sounds better. Thank you!