To reset the 2005 Audi A3 service interval, please follow these instructions:
1. Turn off the ignition. 2. Press and hold the button to the right of the LCD display in the instrument cluster. 3.Turn the ignition on (do not start the engine); the message “SERVICE” appears. Release button. 4. Within 5 seconds, pull the same button and “SERIVCE IN … KM … DAYS” appears. 5. Turn off the ignition. 6. Start the engine and verify indicator has been reset.