We checked in to the Lufthansa Business Class lounge in Munich airport before boarding our flight to Vienna, a part of our Lufthansa business class round the world airfare. As we were flying on to another European country within the Schengen region we had access to the Lufthansa Schengen Business Lounge.
The Schengen lounge is located in terminal 2 opposite departure gate 28. The entrance is shared by both the business class lounge and the Senator Lounge.