To reset the 2017 Audi TT oil change interval after an oil change service, please follow these instructions:
1. Start the engine.
2. Press the MENU button to access the VEHICLE menu.
3. From the VEHICLE menu select SERVICES & CHECKS.
4. From the SERVICES & CHECKS menu select SERVICE INTERVALS.
5. Select RESET OIL CHANGE INTERVAL and confirm.
6. Turn off the ignition.
7. Start the engine and verify the indicator has been reset.