Bayern Munich coach Pep Guardiola displayed signs that he has yet to fully adapt to life at the German champion following Wednesday's win over Manchester United, complaining of a passive home crowd and the huge expectations placed upon his team.

The Bavarians remain on course for a second successive treble, having already sewn up the Bundesliga, and reached the semifinals of the Champions League and German Cup in the Spaniard's maiden season at the club.

However, it is not playing with quite the same authority as last season, when it dispatched Juventus 4-0 on aggregate in the Champions League quarterfinals and demolished Barcelona 7-0 in the last four under retired coach Jupp Heynckes.

"When you don't win, people ask why, but this is football. You can't win all the time but we have won the championship, we are in the Champions League semifinal," Guardiola told reporters after the 3-1 second leg win at Allianz Arena. "Everything is not enough in this club."

Guardiola added that the crowd only got behind his team in the last half an hour, when it came from behind for a win that secured a 4-2 aggregate triumph.

"Maybe we have to play better. After Patrice Evra's goal (for Manchester United), people stood up and began making a noise. I hope that in the semifinal they do that, we need the public to support us."

After Evra put United ahead with a superb volley in the 57th minute, Mario Mandzukic got the quick equalizer, Thomas Mueller made it 2-1 in the 68th and Robben secured the victory in the 76th.