[V6-12v] Codes from 95 A6

[RGuzz]

i noticed the configuration in the fusebox on 12v.org regarding checking 
the codes is different than mine...I'm assuming perhaps from a model 90. 
Though i could pull the codes using the instructions I couldn't clear 
them. So, i believe the battery will need to be disconnected, as you 
have suggested.
BTW, what kind of gas mileage can one expect from a well tuned A6 5speed?
Thanks again,
Richard