Hoeness confirmed negotiations had been underway with the Swiss midfielder as Hertha look to replace the Tottenham bound Brazilian Gilberto.
Hertha are putting the brakes on Gilberto's move to North London so that they can find an adequate replacement, although he has undergone a medical at White Hart Lane.
Berlin bosses have identified Swiss midfielder Dzemaili as their first choice transfer target.
"I telephoned his adviser several times" confirmed Hoeness.
"My hopes for signing Dzemaili are only five percent" declared coach Lucien Favre.