The 67-year-old is optimistic about his side's chances of progressing in the German cup as they prepare to take on their rivals
The Bavarians recorded a 2-1 win over their arch-rivals in the German Supercup earlier this season, while they were held to a 1-1 draw in the Bundesliga back in December, and Heynckes has little doubt Bayern will maintain their unbeaten status against BVB this campaign.
"We have massive ambitions in the cup and we're totally motivated," Heynckes was quoted as saying on the club's official website.
"We play at home, we're confident, and we're playing an unbelievably high standard of football. It all makes us optimistic."
Wednesday's cup encounter kicks off at 19:30GMT.