2002 Audi A6, 120,000+ miles

What does this indicator light mean;
triangle with an exclamation point, encircled by a counterclockwise arrow.

That's just the beginning of my problem, as my car seemed to "die" yesterday but was actually running. The engine started revving in park. When shifted to drive it crept along about 10 miles an hour.

I bought this car used & have no user manual.

I'm just trying to figure out what the indicator light means at this point.

 

ESP, Electronic Stability Control light... It can be anything from wheel sensor to engine related limp mode stuff... Find a mechanic who knows german stuff...