Polish talisman Robert Lewandowski has been in red-hot form in front of goal as ever with 10 league goals to his name so far, although they do rely on him somewhat with next-highest scorers Arjen Robben, James Rodríguez and Corentin Tolisso all on just two league goals.
Dortmund's evening got even worse before the end of the first half due to Sokratis Papastathopoulos limping off injured, but they could so easily have been back in the match had Yarmolenko got the better of Ulreich in his second clear-cut chance of the contest. "It was impossible to predict four weeks ago that we would now be six points ahead of Dortmund and four ahead of Leipzig", said Heynckes.
"I also have to compliment our medical department".
Lewandowski is available after missing the 2-1 win over Celtic with Heynckes assuring fans the striker "has not sustained an injury, but an overburdening", while also saying that "Dortmund will be much more concentrated and attentive" this weekend.
The contest's pivotal moment arrived shortly after the half-hour mark when, either side of a well-saved Lewandowski shot, Andriy Yarmolenko was denied by Sven Ulreich and Shinji Kagawa missed the target by no more than a few inches.
David Alaba put the game beyond Dortmund midway through the second half as his cross found the net after just evading Lewandowski in the area. "Whether it's my goal or not, that does not matter". He is now the Bundesliga's top scorer.
After Aubameyang wasted his first chance of the match, Robben rounded off an exquisite Bayern move to give Bayern a 16th-minute lead. We scored three goals.
Bayern's victory was their seventh straight in all competitions since Heynckes took over last month following the departure of Carlo Ancelotti, while Dortmund are in complete free fall, suffering their third loss in their last four league games. We just chased after them and were always too late, so you can't talk about us being a top team. "In the second half, we showed that we can, once each player got closer to their man, it was a real game".
"Maybe the timing of this game is right", Bosz said.
Meanwhile, Bayern president Karl-Heinz Rummenigge has ended their interest in Arsenal's Alexis Sanchez, insisting that the Chilean forward has already chosen his destination.