The Brazilian says that his former club are capable of winning the Bundesliga title and DFB-Pokal, but played down their chances of lifting the Champions League trophy
Jupp Heynckes' side sit four points behind reigning champions Borussia Dortmund but the Brazilian is confident that the Bavarians will overturn the deficit.
"I'm sure [Bayern Munich will win the Bundesliga]," the 37-year-old declared to Bild.
The Brazilian also backed the club to overcome Borussia Monchengladbach in the DFB-Pokal semi-final.
"They will not lose three times to Monchengladbach. They will win the Pokal, against Dortmund in the final."
However, Ze Roberto was less optimistic of Bayern's chances of Champions League success despite the final being held at the Allianz Arena.
"In the Champions League, the furthest they will reach is the semi-finals. Against Basel, they will certainly win, but they will probably not reach the final."
Bayern Munich are set to face Bayer Leverkusen at the BayArena on Saturday.