"We have made a huge step [towards winning the title]," he told TZ. "It was a beautiful Saturday.
"Now we can't let the championship slip away, we have to win the title. But that doesn't mean we can allow us to become complacent now.
"There's always room for improvement. The most important part is that we maintain our stability. The big games are yet to come, the real test will follow."
Bayern will take on Wolfsburg away from home in the Bundesliga on Friday.