To reset the 2016 Audi A6 service interval, please follow these instructions:
1. Start the engine.
2. Press the CAR button to access the service menu.
3. From the CAR menu select CAR SYSTEMS.
4. From the CAR SYSTEMS menu select SERVICE & CONTROL.
5. Select SERVICE INTERVALS and turn the control knob downward to RESET OIL CHANGE INTERVAL and press the control knob.
6. Turn off the igntion.
7. Start the engine and verify the indicator has been reset.