Audi A3 (2003-2009)
For Fixed Interval servicing, you can use the following procedure:
Start with the ignition turned ON (position 2), but with the engine OFF
Pull out and hold the button on the right side of the display until “SERVICE” appears on the display
Release the button on the right, then within 5 seconds pull the button out and hold it again
Release the button when the display shows “- – -” or “SERVICE IN xxxx Miles / Kilometres, xxxx days”
Turn off the ignition