The home fans obviously wanted more. They should have had applauded more than one goal on the night, but it was not to be.
Bayern leads Leverkusen by 12 points at the top. Leverkusen plays Hamburger SV on Saturday.
Here are 10 conclusions from the match between Bayern and Gladbach:
It is seemingly impossible to hold Bayern goalless this season.
Bayern are yet to be shut out this season.
The attack has functioned incredibly well. It had an off-day twice perhaps this season—in Minsk against BATE and in Nurnberg. Yet Bayern managed to score in those games.
This also has to do with the new recruits on the bench as Xherdan Shaqiri showed on Friday. Last season, Bayern was involved in a few matches where scoring seemed an impossible task. That is now a problem of the past.
Bayern was rewarded with plenty of set-piece opportunities today but did not covert.
Bastian Schweinsteiger, Toni Kroos and David Alaba took turns in trying to hit the back of the net from the edge of the box but failed. At least one of those opportunities should have been taken.
The deliveries from the corners weren't good on Friday. Dante Bonfim Costa Santos came the closest in the first half with a header.
This is a problem that is simply not going away.
Bayern needs to have an anchor in midfield.
Schweinsteiger isn't really an anchor even though he played that role well on Friday. The anchor is Javi Martinez or Luiz Gustavo. While Martinez's substitution allowed Shaqiri to come on and bolster Bayern's attack, it left Bayern quite open at the back.
Gladbach easily tore through the middle. Martinez's presence would have perhaps prevented that.
Dante showed once again why surely he has been Bayern's best transfer of the season so far.
He was immovable at the back and robbed Juan Arango of a goal with a last-minute tackle. That was his second last-minute tackle of the day too.
For perhaps the hundredth time this season, Bayern fans were breathing a sigh of relief due to Dante's solidity.
Jupp Heynckes made a great substitution.
Last season, Heynckes was criticized for making poor substitutions. That was perhaps due to his lack of options on the bench. Seeing that Bayern was a goal down when Martinez was injured, he brought in Shaqiri with about an hour played. Shaqiri scored an incredible goal and justified Heynckes' decision.
Lucien Favre's side put in a good shift.
While they didn't attack too many times, they defended bravely. The team followed the game plan well and caused Bayern plenty of trouble. In the first half, they effectively broke down Bayern's play. In the second half, they held on for their lives and needed Marc-André ter Stegen's assistance to keep Bayern out multiple times.
Ter Stegen was definitely the man of the match.
He showed exactly why Joachim Low keeps him in the national side. He was brilliant and made some unbelievable saves. His first error came in injury time in the second half when he conceded a corner. Otherwise, he did his reputation no harm and showed that he has a mature head on young shoulders.
The fact that Thomas Muller drifted in and out of the game shows that Arjen Robben is missed.
Muller was hardly seen on the pitch. This is not the first time this has happened this season. Muller has had a good season so far, but Friday's match showed that Bayern could benefit from the return of Robben.
Players have off-days, and this was one for Muller.
The penalty decision is debatable.
Jerome Boateng seemed to move his arms to protect himself; however, there is no doubt that the ball hit his arm.
Last week, Marcel Schmelzer was sent off for a hand-ball. Replays showed he was moving his hands to protect his body from the ball.
Bayern had at least one legitimate penalty shout too.
Bayern's finishing has to improve.
Mario Gomez could have easily notched two goals including one in the dying seconds when Kroos set him up with a tap-in. Credit must go to Gladbach's defending and the aforementioned ter Stegen. However, failing to finish chances isn't a new problem for Bayern.
It is one that must be resolved.
The Bundesliga shuts down after this week's round of fixtures, and Heynckes will be satisfied going into the winter break. Bayern are set to break all records if they continue moving forward as they have thus far.