Bayern's celebrations looked in danger of being delayed when the ball went into their net off their own defender Niklas Suele. However, Corentin Tolisso and James Rodriguez replied for the Bavarians before halftime before Arjen Robben and Sandro Wagner put the finishing touches in the second half.
Bayern, who have 72 points from 29 games, moved 20 ahead of Schalke 04, who later lost 3-2 to lowly Hamburg SV.
Bayern Munich's headcoach Jupp Heynckes (R) celebrates with Bayern Munich's Dutch midfielder Arjen Robben. /VCG Photo
Bayern Munich's headcoach Jupp Heynckes (R) celebrates with Bayern Munich's Dutch midfielder Arjen Robben. /VCG Photo
It was a remarkable personal achievement for Bayern's 72-year-old coach Jupp Heynckes, who came out of retirement in October to replace Carlo Ancelotti for his fourth stint at the club with Bayern five points off the pace.
He led them to 19 wins in 22 Bundesliga matches on his way to claiming a fourth Bundesliga title as coach, all with Bayern.