What, if any, is Audi's liability if t-belt goes before recommended interval?

[TM]

Bill,
If you want Audi's official answer, you should write a letter to
Audi Customer Relations, asking specifically what the service interval
is for the timing belt and ask for a reply in writing, enclose a
self-addressed
stamped envelope for their convenience.

Yes, these cars require expensive maintenance, but it's even more
expensive when you let the maintenance lapse and the costs get
exponentially higher.

Taka