To reset the 2002 Audi TT service interval light after an oil change, please follow these instructions:
1. Turn off the ignition
2. Locate the Driver Information System (DIS) in the instrument panel.
3. Do the following to display the SERVICE! message in the display.
i) Press and hold the right RESET knob.
ii) Turn on the ignition – do not start the engine.
iii) Release the knob.
4. Do the following to display the next service interval (SERVICE IN ##MI)
i) Press and hold the right RESET knob.
ii) Release the knob.
5. Turn off the ignition.
6. Start the engine and verify indicator has been reset.