The DBAG Class 225 are a set of related 4 axle diesel hydraulic locomotives from the DB V 160 family.

The individual details of the members are as the locomotive classes they were derived from, excluding any modifications undertaking for the conversion to non-passenger work.

The steam heating was removed since it was no longer needed; instead, a heater for pre-heating the engine machinery was installed.

A large part of them went into service still unmodified, the removal of the steam boiler taking place later concurrently with scheduled overhauls.

There are differences between the individual class members; locomotives 225 001-004 and 225 802-811 lack a hydrodynamic brake.