The cache is NOT at the posted coordinates.
The headline coords are for the closest parking. The Trig Pillar is at the waypoint provided.
The Cartridge from -Waldmeister- is available to download HERE. His "The Reverse Cache" is the original cache.
Once you are at the Trig you will need the four digit number flush bracket, this will be ABCC
9CBAB0
5CC007
65(B+C)C80
Hint - Make a note of this code and take it with you, just incase there is a problem with your cartridge.