Thanks Bob. Hmmmm....I thought the letter codes were sequential as in G was a refinement of F. I guess not - at least in this case. Now to try to get a cross over to a Bosch number. Dave F. Bob Rossato wrote: > '92-'97 S4/S6 2.2L & 4.2L > 8A0 906 091 G > > '97 S6 Plus > 4A0 906 091 B