As per title, i have a b5 audi a4 wich i bought as spares or repair and i have misplaced the working key. I have another key cut wich was given to me as a spare and i am trying to match it to the Immo2. The immo is a poxy Magneti Marrelli half FIS. I managed to read the pin number with Vagtacho but it wont program the key either with vagtacho or VCDS. The immo2 just drops the comunications and says FAIL in the trip display. Anyone has any ideea ? I have tried adding 0 in front of the pin (as per VCDS instructions) and even tried to re-program the odometer (just to make shure the tool works properly!) and still no luck... Any suggestions ?