The 190SL Group Technical Manual, which includes reproductions of the original factory press release, and reproductions of factory photos. The book is loose-leaf bound, to allow for future expansions and it is divided into 15 sections. This book contains much of the technical information from the 190SL Group Newsletters from Volume 1 through March of 1991. Chapters include 1)Axles, 2) Body, 3) Brakes, 4) Carburetors, 5)Cooling/Heating, 6) Detailing, 7) Electrical, 8) Engine, 9) Interior, 10) Mechanical, 11) Miscellaneous.  Pages number about 200.  Everyone agrees, this book usually saves over 10X the price! You can't own a 190SL without this most valuable tool.  The Tech Manual is available only to Club members.