Heynckes believes that away goals hold the key to a spot in the final and promises to go on the attack on Wednesday evening.
"We're aware that we'll need a goal or two, although we're capable of that because we have outstanding forwards," Heynckes told to the official Bayern website.
"But to start with, we have to keep it compact and tight, which will give us very good opportunities on the break."
Most importantly, the Bayern Munich manager wants full commitment from players.
"It's extremely important we summon up our full potential. We have to give it 100 or even 110 per cent. The last 10 per cent comes from emotional energy. If we succeed, we have a big chance of making the final."
This year's Champions League final will be held at Allianz Arena - a huge incentive for Bayern Munich to secure home advantage should they make their first Champions League final since 2010.