The goalkeeper was on the receiving end of fierce abuse from his new club's supporters as Bayern strolled to a comfortable 15-0 friendly victory in Italy
The former Schalke goalkeeper completed an €18 million transfer to the Bavarian giants last month, although his arrival at the Allianz Arena was met by a wave of criticism from some of the club's die-hard fans.
Part of the animosity between some supporters and the German No.1 stem from two years ago when the keeper mimicked former Bayern legend Oliver Kahn's title celebrations from a few years earlier.
Neuer, who played 45 minutes before being replaced by Hans-Jorg Butt at half-time was whistled and jeered, with the fans holding up banners with abuse directed at the 25-year-old.
One slogan said: "You may catch as many balls as you like, but we will never accept you in this shirt."
3,000 people were present at the game which took place in Arco in the northeast of Italy, where the club are currently holding a training camp.
The German giants included another debutant alongside Neuer in their starting XI with Rafinha playing at right-back while new-boy Nils Petersen came off the bench at half-time to score a brace.