The coordinates won't give you any information on the cache hiding place.
This will be my last cache listing on geocaching.com, because I am moving to opencaching.de.
Therefore this last one is very special and consists of many riddles, but at the end You will see
that everything is logically. So let´s start easy 
Locate and remember this part of Berlin, but don´t search the cache there!
Then solve the code below and find a way to use it!
This cache has a little sister. She follows him closely, so use her coordinates for checking your results.
Good luck, Mic@