W0245715 appears to be the "type" of co-ordinate discussed on this site:
http://www.echodelta.net/mbs/eng-welcome.php
except the format would be wO245715 for the Nord de Guerre grid, and when you use the translator on the above website you end up at
Latitude : 50° 06' 04'' N
Longitude : 10° 52' 42'' E
which is nowhere near the actual crash site.
Some of the co-ordinates for other losses on the link you found do seem the check out using the "echodelta" site on the appropriate grid map, so I am not sure where they went wrong on Pines.