City will take a three-goal advantage to Germany for the second leg following strikes from Rodrigo, Bernardo Silva and Erling Haaland on an exhilarating night.
But the boss says we will face a tough test in the rematch against the Bundesliga champions, although he was delighted with how his side took their chances to build up an advantage.
“I know what we have to do there, and we have to perform really well,” Guardiola said about the second leg on Wednesday, 19 April. “They are able to score one, two, three, I know it and the players know it.
“It was an incredible result but we have to do our game with a huge, huge personality because they are a top team.
“Here we have our chances. Here in this stadium we are something special this season. When we have the momentum we are clinical.
“It is the same in Munich. I have been there for three years. I know what it means and the people. But we are going there to score the goals and to try to win the game. To do that will be so difficult.”
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Despite the final scoreline, Guardiola believed that the game was close for the opening hour and says his side can improve.
But he was delighted with the way they ended the game and wants the players to match that performance in the second leg.
“It was a Champions League game, quarter-final against a top team,” the boss said. “For 55, 60 minutes it was a tight game.
“Part of the game they were better than us. We found an incredible goal from Rodri. We could not control the pockets, especially the pace they have. It is so difficult to control them.
“In the first five, ten minutes of the second half, they were better with half chances and set-pieces. But after we adjusted something and in the last part of the game we were better.
“We scored three fantastic goals. We had chances. It was an incredible result. But I know a little bit, we have to do something a little bit better to adjust something so we don’t suffer too much with the quality they have. We will try to do.”
And Guardiola said he felt exhausted following the game but added that he and the players will be ready to go again when we face Leicester City in the Premier League on Saturday with Bayern four days later.
“Emotionally I am destroyed - I have [aged] 10 more years today!” he said. “It was such a demanding game.
“Now we have to relax, take a day off, prepare for Leicester and after we travel [to Germany].”
