hi --
sorry to hear this has happened to you, and its happened to me.
i've replaced the hazard/emergency light switch, but the problem
hasn't gone away.
Audi Repair: audi tt blinkers clicking noise
explains another repair to deal with that particular situation, but i'm
just starting to try to figure out what the issue is -- please post
as you figure out what's going on.
my car is a 2001 a6 avant -- thanks