so I have an 05 s4 with 117k that started having random misfires across 5 cylinders. brought it to a shop
that specialized in audi and they told me I needed to update my software so I went from version 10 to version 30.
It basically went from bad to worse after that. misfires got alot worse and it sputters and almost stalls whenever I take it out of gear and
coast to a stop.
they are stumped as to y its doing that and now im getting 10 to a gallon or less.
any ideas whats wrong????