I have a similar issue with my volvo. I get a message that says that the DSTC (ESP) needs service or is temporarily off, while it works just fine. They reseted the electronics but nothing happend. (the message appears every two or three weeks and stays for an hour or two and then dissappears) I am waiting for a full reprogramming. (free of charge!)
Audiholic, i wish you good luck on this. I still haven't solved mine! I am 100% sure that it is an ECU problem and you should get some Audi treatment soon enough, before everything blows up
