How do you reset esp light on Audi a3?

To reset the ESP light on an Audi A3, first ensure that there are no underlying issues with the traction control system or sensors. You can try disconnecting the battery for a few minutes to clear any fault codes. Alternatively, use an OBD-II scanner to read and clear the fault codes. If the light persists, it's best to consult a professional mechanic for further diagnosis.