Robert Lewandowski opened the scoring at the community4you ARENA on 20 minutes before adding a second on 60 minutes, after Kingsley Coman had netted Bayern’s second on 51 minutes.
The goals kept coming as Franck Ribery added a fourth on 79 minutes, while Matts Hummels rounded off the scoring on 89 minutes.
Borussia Dortmund, meanwhile, put four past Rielasingen-Arlen to no reply, at the Schwarzwald-Stadion.
The Bundesliga side easily saw off their Verbandsliga Südbaden opponents, with Marc Bartra on target on 12 minutes, ahead of a 41st minute Pierre-Emerick Aubameyang penalty, who then added a third on 55 minutes. The Gabonese striker grabbed his hat-trick with a third goal on 80 minutes.
All of the results:
Germania Halberstadt 1 – 2 SC Freiburg
Chemnitzer FC 0 – 5 FC Bayern München
LSK Hansa 1 – 3 1. FSV Mainz 05
Leher TS 0 – 5 1. FC Köln
Unterhaching 0 – 4 Heidenheim
Erndtebrück 0 – 3 Eintracht Frankfurt
Rielasingen-Arlen 0 – 4 Borussia Dortmund
Eichede 0 – 4 Kaiserslautern
Still to play:
Rot-Weiß Erfurt v TSG 1899 Hoffenheim
Jahn Regensburg v SV Darmstadt 98
Arminia Bielefeld v Fortuna Düsseldorf
Würzburger Kickers v SV Werder Bremen