The first goal Tuesday was emblematic. Messi, who led the 3-0 thrashing at Camp Nou last week with two gorgeous goals, showcased his superior distribution capability by dancing toward the middle of the field, taking a pass and quickly slotting through a perfectly weighted ball that laid open the Munich defense.

Suárez knifed through and collected it before graciously sliding it over to Neymar for a simple finish into an open net. With away goals serving as a tiebreaker, Bayern Munich, which was hoping to become just the second team in Champions League history to overturn a three-goal first leg deficit, now needed to score five.

“We believed in the miracle, but we couldn’t make it happen,” the Bayern Munich captain, Philipp Lahm, said. “It’s impossible to stop those players for the whole 90 minutes.”

Bayern surely tried. Futile as it might have seemed, particularly without several injured cogs, such as Arjen Robben and Franck Ribéry, the players pushed forward all the same, straining to break down Barcelona’s back line without opening themselves up too much. Striker Robert Lewandowski had chances. So did Thomas Müller. Marc-André ter Stegen, Barcelona’s 23-year-old German goalkeeper, was far busier this week than last and finished with five saves.

It still was not enough for Bayern Munich. Guardiola, who coached Barcelona to 14 trophies from 2008 to 2012, never had a front line quite like the one his former teammate Luis Enrique can count on. Guardiola could only watch as Neymar scored a second, again off a pass from Suárez, who had again been sent in by Messi, after half an hour. The goal removed all doubt.

“We’ve made two mistakes in defense and been wasteful ourselves,” Müller said. “That’s very annoying.”

Nonetheless, the second half had its moments. Lewandowski scored in the 59th minute and Müller in the 74th to give the home fans a few more opportunities to cheer. But Barcelona was never truly threatened, and its biggest concern was the status of Suárez, who exited at halftime with what was described as a slight hamstring strain.