The teenager has scored three goals in consecutive matches since Hoeness made comments to reporter Welt am Sonntag, stating that he wants to have a serious talk with the youngster regarding remaining humble.
Karl has featured more prominently in the Bavarians side since the injury to Colombian star Luis Diaz picked up in the 2-2 UEFA Champions League draw against Arsenal at the Allianz arena last month.
"I think I played a part in 50% of his goals in recent days because someone made a comment about his private life," said Hoeness to a reporter.
"We also have a responsibility to give young players guidance. I have so much experience, and if an 18-year-old can't learn something from me, then we might as well give up.
People in charge at the clubs are responsible for bringing young players back down to earth a little bit. I don't need to do anything with someone like Harry Kane.
"But with an 18-year-old who has no experience dealing with these outside influences, those in positions of responsibility — and I see myself as one of them — sometimes [I] have to speak up."
The teenager has linked up with the Germany senior squad for their upcoming Nations League clashes against Serbia and the Netherlands in Group A2 this month.
Borussia Dortmund defender Julian Ryerson has called on FIFA to scrap its referee cameras, describing the technology as unnecessary and claiming it is making football more like a comedy show.
Ligue 1 side Lens have sacked head coach Yannick Cahuzac following a disastrous run of six consecutive defeats, including a humiliating 9-1 loss to Como in the Champions League.
Aleksandar Pavlovic is enjoying being part of Bayern Munich's emerging generation of young stars and believes the club has a bright future with Tom Bischof and Lennart Karl.
Harry Kane is set to make history when he captains England against Croatia at Wembley on Thursday, becoming the country's most-capped men's international player with his 126th appearance.
