Did you ever figure this out?

Hi, try this, with the car in off position press and hold the SERVICE button tan turn on
ignition to on position( do not start engine),when display reads se rvice in ?? Miles or
service! Than release service button and press and hold the odometer reset button
until service in miles ,days or service is shown,turn ignition off and the reset is
complete, sometimes this can only be done with audi compatible scan tool,because
there is no manual reset procedure for this model.