Despite conceding their first goal in three games, Mainz didn’t look discouraged thereafter, as they continued to tussle against the hosts in a bid for an equaliser.
Die Roten made the visitors pay for their missed chances just before the break through Mané, who first won a penalty before going on to score the rebound after Robin Zentner produced a wonderful save from the spot-kick.
With hopes of a comeback all but buried, Bayern continued to mount pressure on the visitors in the final minutes, registering a fifth goal via Mathys Tel, whose deflected edge-of-the-box shot saw its way into the left corner.
Having won the second half in five of their six away league games this term, the Nullfünfer never looked close to doing so once again, succumbing to a highly-motivated Bayern outfit in the ascendancy.
Ultimately, their hopes of jumping within a point of their hosts came crashing down, as Die Roten cruise to the top of the league table, two points ahead of Union having played a game more.