Jurgen Klopp believes Bayern Munich could be "more dangerous than before" against Liverpool due to their inconsistent form in 2018-19.
The Reds host Niko Kovac's side on Tuesday in the first leg of their Champions League last-16 tie.
Liverpool have been tipped by many as the favourites to progress to the quarter-finals, with Bayern's dominance of German football appearing to be weakening during something of a transitional season under new manager Kovac.
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They sit two points behind Bundesliga leaders Borussia Dortmund, having played a game more, and twice fought back from a goal down to beat Augsburg 3-2 on Friday.