Am I imagining it, or do you get three bleeps for coolant level too? Of course their would be a light for that as well, but if you're paranoid it might be worth checking anyway (as dead-lights in the dash aren't an _absolute_ impossibility).
Mine was beeping at me earlier for coolant (I've still not figured out why mine will go from max-min in about a week or so without even running the engine, or seeing a drop of water anywhere in the engine-bay - and I'm just starting to wonder how much I might get stung for Audi to find out/rectify it /ubbthreads/images/graemlins/frown.gif), but I'm still (stupidly) only about 50% certain there were three bleeps - I'm sure someone will correct me if I'm wrong, but I thought it was worth mentioning.
Regards,
Rob.