CATERPILLAR C15 diesel engine PDF manuals and spec sheets CAT C15, Manual de Operacion y Mantenimiento, 106 pagina, Haga clic para descargar. CAT C15 Bolt torques, More CAT Specs and Manuals, Other Engine manuals. CAT C15 bolt torques, specs - Click to view. You need membership for engine manuals or parts books. Subscribe for Membership if you need manuals continually or Take a one week membership Citroën C15 Workshop and Owners Manual | Free Download Citroën C15. The Citroën C15 was a panel van produced by the French manufacturer Citroën from 1984 until 2005. It was the successor to the Citroën Acadiane which had replaced the Citroën 2CV vans that pioneered the box van format in the 1950s - 1970s.