Elsewhere, there were draws at Hertha Berlin, FC Augsburg, and Eintracht Braunschweig, while Werder Bremen took all three points in the 100th northern derby. bundesliga.com is on hand to round up the main talking points from the latest weekend of top-flight action...
Ahead of Bayern's meeting with FC Schalke 04 at the Allianz Arena, Thomas Müller had claimed that, realistically, the title race was already over. It's hard to argue with the 24-year-old midfielder after the Bavarians produced yet another masterclass to beat the Royal Blues 5-1 and move 20 points clear at the top of the table. Jens Keller's team, meanwhile, have now conceded eleven goals in their last two matches in all competitions and must dust themselves off ahead of the visit of free-scoring 1899 Hoffenheim on Matchday 24.
Leverkusen can't buy a win at the moment. Die Werkself suffered their fifth successive defeat in all competitions on Saturday, after Maxim Choupo-Moting's instinctive finish earned Thomas Tuchel's team a narrow win which moves them into the top six. Things aren't about to get much easier for Bayer 04, however: Sami Hyypiä's team are at Hannover 96 on Matchday 24, before travelling to league leaders Bayern on 15 March.
Borussia Dortmund, meanwhile, showed Leverkusen how to bounce back from defeat at home to 1. FC Nürnberg. The Franconians went into the encounter having collected 12 since the turn of the year, but were no match for Jürgen Klopp's team, who moved up to second in the table thanks to goals from Mats Hummels, Robert Lewandowski and Henrikh Mkhitaryan. The victory was just the tonic BVB needed after suffering a surprising 3-0 defeat to Hamburger SV last time out.
New Hamburg coach Mirko Slomka was brought back down to earth with a bang following that victory over Klopp's charges last weekend. Defeat to SV Werder Bremen in the 100th northern derby leaves HSV in 16th in the table and deep in relegation trouble. Zlatko Junuzovic's first-half strike - the midfielder's second of the season - lifts Bremen up to 12th and eases their own relegation fears in the process. HSV now face crucial home games against fellow strugglers Eintracht Frankfurt and 1. FC Nürnberg.
It's highly unlikely either Eintracht Braunschweig or Borussia Mönchengladbach will be overjoyed at having to settle for a point each at the Eintracht-Stadion on Saturday. Lions' keeper Daniel Davari inadvertently turned Raffael's corner into his own net after 24 minutes, and Gladbach looked comfortable until Marc-Andre ter Stegen let Filip Daems' back-pass bounce over his foot and into the net in the 52nd minute. Braunschweig remain stranded at the foot of the table, while Gladbach are still without a win in 2014.