1985? 1991? ohhhhhhh 1970!!!, I'm curretly reading a book about Volkswagen, it goes from 1937 to presently, 1999 or 2000. Anyways I just started 1970 and apparently in 1970 all Beetles, no sure of other VW's, had a large clamp inside the engine near the doghouse. It sopposely was something you could only hook up at the dearler and could print out everything that was replaced and when it was last serviced and when it should be serviced next time around. This blew my mind. I never thought of it after that until now. So apprently are cars can be pretty advanced. Sry just though I'd share something I learned, its a shame you cant hook one up.
1965 VW Beetle, "Thug Bug"
LOOKING FOR A GHIA, IN THE TX AREA
San Antonio Aircoolers