The former midfielder believes his old club is well on its way to Wembley, but feels Borussia Dortmund faces a trickier test in seeing off Real Madrid.
Stefan Effenberg says Bayern Munich is already in the Champions League final as the club prepares to face Barcelona in the second leg of their semifinal tie.
The Bundesliga champion handed the Blaugrana their biggest European Cup defeat since 1997 by thrashing them 4-0 at the Allianz Arena last Tuesday.
And despite their still being 90 minutes of the tie left, Effenberg is confident FCB will finish the job off at Camp Nou, but has reservations over BVB's second-leg clash with Real Madrid - regardless of the 4-1 win in the first leg.
"Bayern are through, they will not allow anything to happen in Barcelona," the 44-year-old told reporters. "BVB also have a good opportunity to reach the final, but Real will try everything in their own stadium. That will be a really dicey contest.
"An all-German final would be a real dream come true," added Effenberg.
Dortmund and Madrid do battle at the Santiago Bernabeu on Tuesday night, while Barca and Bayern face one another for a second time on Wednesday.