The most successful Diesel Hydraulics, the V160 series
Baureihen: 210, 215, 216, 217, 218, 219, 224, 225, 226, 753
http://www.v160-familie.de/
http://www.dbtrains.com/en/locomotives/epochIII/V160 (English)
http://www.dbtrains.com/en/locomotives/epochIII/V162-V164 (English)
http://en.wikipedia.org/wiki/DBAG_Class_210%2C_215_-_218%2C_219_old (English)
http://epoche-3.de/v160.php
http://www.deutsche-lokomotiven.de/v160/
http://www.baureihe217.de/
http://www.br218.de/
Shunting diesels
http://www.rangierdiesel.de/