Bayern Munich captain Philipp Lahm says their Champions League last 16, second leg match against Juventus on Wednesday is an all-or-nothing clash, with the Bavarian giants focused on reaching the quarter-finals.

The 2013 Champions League winners have reached at least the semi-final stage for the last four seasons, but face a stiff test from Massimiliano Allegri's Juventus at the Allianz Arena after drawing the first leg 2-2 in Turin.

The Germans threw away a two-goal lead after Thomas Mueller and Arjen Robben put Pep Guardiola's side into a commanding position, as Juve hit back through Paulo Dybala and Stefano Sturaro after mistakes in the Bayern defence.

Nevertheless Lahm says he is 'very, very positive' about Bayern joining Wolfsburg in the last eight of Europe.

"You know that this could be the end of the road, but while the 2-2 in the first leg was a great result away from home, all that counts for us is going further," said Lahm.

Bayern are five points clear in Germany's top flight, but Serie A leaders Juve are unbeaten in 19 Italian league games and Lahm expects them to provide his team with an acid test in Munich.

"The fact remains, this is an Italian team who will lie in wait for our mistakes and will attempt to use them ice cold," said Lahm.

"We can't afford to make any mistakes and must be wide awake for the full 90 minutes."