The German and European champions trailed at half time to Shawn Parker's 44th-minute goal, but second-half strikes from Arjen Robben, Mario Mandzukic and a Thomas Muller brace ensured that Bayern sailed to a comfortable victory.
"I am delighted with the result", the Spaniard told a press conference after the game.
"I kept calm at half time. We did change the system a little and Arjen Robben played on the left."
The win saw Bayern leapfrog Bayer Leverkusen to go top of the Bundesliga table.