This manual measures app 8 x 11 ½" and is 45 pages not including the covers. Basically details the entire EZK ignition and LH Jetronic fuel injection systems, with thorough instructions on how to service/diagnose them. Lots of photos and illustrations. Plug connections are shown and labeled, there is a wiring diagram, 21 test points are thoroughly detailed, TOC below. Is it good beyond 1987? I don't know, there is not another of thee for the later S4's. Porsche part number WKD 493 921, print date 3/87.
$50 US delivered, $55 Canada, $60 anywhere else. My email is cs8815 at aol dot com
