Goals from Bernardo Silva and Gabriel Jesus not only made it 19 consecutive wins for City but also saw Pep Guardiola's side create a new English top-flight record of 12 straight away wins.
In a game played at the Puskas Arena in Budapest in the wake of the COVID-19 pandemic, City were in imperious form against the Bundesliga outfit.
Joao Cancelo produced a man-of-the-match display in helping to provide superb assists for both goals, his pinpoint cross being met by Bernardo's first half header before another teasing pass was then met by Bernardo who teed up Jesus for our second just past the hour mark.
And with City recording a 24th clean sheet of the season - one more than in the whole of last term - the result puts us in an excellent position ahead of next month's second leg decider.
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