Low and Bierhoff attended FIFA's The Best awards in London at the weekend and had hoped to talk to playmaker Ozil, 29, who retired from the Germany team in July and cited racism in the German FA.
Last month, Low said he had tried to make contact with Ozil but his calls were not returned.
Having informed Arsenal of their visit, Low and Bierhoff had hoped to meet with Ozil at the Colney training ground on Monday, but Bild reported that they were not allowed to attend "at the behest of Arsenal coach Umai Emery."
Bild magazine quotes Low's number two, Oliver Bierhoff saying: "We would have liked to have spoken to Mesut, but we have to accept that at the moment he doesn't want to have this conversation with us,"
However, Sky Sports News has been told that some aspects of the reports in Germany are wide of the mark and that Low was in Hertfordshire to talk to Bernd Leno, Shkodran Mustafi and Per Mertesacker - who was appointed as the head of the club's academy at the end of last season.