A 4-0 thumping of Freiburg on Sunday means Bayern only have to extended their giant lead by two points over the next two weeks to be confirmed league champions.
If they are 22 points clear after playing RB Leipzig away on March 18, a sixth league title in a row will be theirs.
It would equal their own record, set in 2013/14 when Bayern won the Bundesliga with seven games to spare under the leadership of Pep Guardiola.
This season only mathematical doubt remains, but Heynckes insists there will be no let-up in their bid for silverware, even though it is not the first season Bayern find themselves streets ahead of their league rivals.
"Now it's down to experience and also Jupp Heynckes will not tolerate any nonsense," Bayern's chairman Karl-Heinz Rummenigge told 'FCB.tv'.
Bayern were five points adrift in the league when Carlo Ancelotti was sacked last October, but Heynckes, 72, took over, tightened discipline and turned things around.
Having thumped Besiktas 5-0 in the last 16, first-leg of the Champions League, Bayern could still even repeat their 2013 treble of European, German Cup and league title won under Heynckes.
The Bundesliga leg of the 2013 treble was wrapped up with six games to spare and Bayern's captain Thomas Mueller sees no difference this time around.
"In the triple year, the championship was decided early and we could keep the tension, so we try this time," said Mueller. "[Heynckes] will continue to kick our butts if he sees any drops in voltage."
March 4, 2018
Having struggled for form under Ancelotti last season, Mueller is back to his absolute best under Heynckes.
One of the best goal poachers in the modern game, he forced Freiburg into conceding an own goal, set one up for Sandro Wager and then fired home Bayern's fourth on Sunday.
It was the sort of outstanding display that makes Mueller a shoo-in for Joachim Loew's World Cup squad to be named on May 15 as Germany go in search of a second consecutive World Cup.