The class 215 diesel locomotives of the Western German Railway (DB) are used in mixed service since 1968. 215 001 to 010 and 215 071 to 093 were equipped with a 12 cylinder 4 stroke main Diesel from MAN that was later called MTU 12 V 956 TB10 that generates 2500 HP. All 215 had a steam boiler OK 4616 made by Hagenuk (licence given by Vapor Heating). A quite similar boiler had been used in some american GP7 and GP9 locos as steam heating equipment. During the late 1990s the DB replaced the steam heating boiler by an electrical connector. Further the locos were no longer used in passenger service.
