Hi!
I have found Alfa Romeo 166 ICS (Siemens VDO) internal settings to happen on. If you press on your ICS buttons "CLIMA + DARK" you will access to Alfa Romeo 166 hidden, i think top secret service menu. There you can read your car ICS CODE, NAV CODE in the first screen. You can adjust odometer, injection and etc. :-)
You can also see other settings if you press right round button more than five sec.
PS
I recommend - don't change any of thease settings.
If you have found any new information about how to adjust thease settings please contact with me:
itman@inbox.lv