He could face five years in jail if convicted. Multiple ex-SS soldiers have faced trial in recent years over their actions during the Nazi era.
Brussels lawmakers call on Berlin to halt payments.
The suspect said through his defense lawyer that he was “not aware of the background, intent or procedures behind the killing” at the camp.
During police questioning, Hubert Zafke initially denied having been present at Auschwitz but later admitted that he had been there.
Ukrainian SS death camp guard Ivan Demjanjuk: The longest case of a Holocaust perpetrator.