To reset the 2017 Audi A6 oil change interval after an oil change service, 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 ignition.
7. Start the engine and verify the indicator has been reset.