I had this happen on my '07 one night a couple of weeks ago and it hasn't happened since, but what a frustrating situation. Maybe I'll say something to Audi before my car is out of warranty and then I should be able to shed some light.

 

hi forum' i to had the indecator problem and have managed to solve the problem by replacing the hazard relay .£35.90 fom medway tps.a little tricky to release the actual relay itself but with a couple of small screw drivers its doable,all working fine now .hope this helps