To reset the 2000 Audi TT service message after an oil change, please follow these instructions:
Manual Reset using DIS and Reset Knobs: 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. Manual Reset for 2000 only: 1. Turn off the ignition. 2. Press and hold the TRIP RECORDER reset button on the instrument cluster and turn on the ignition. 3. Release the button. The display will show SERVICE IN —MI or SERVICE. 4. Within 5 seconds, turn the CLOCK ADJUSTMENT knob in the instrument cluster clockwise until the message resets to service in 15000KM. 5. Turn off the ignition. 6. Start the engine and verify indicator has been reset.