The d3_update103mx.zip file you have requested: Official Patches / v103 / Diablo 3 v1.03 Patch (spanish/Mexico) - 200.4mb is not available. Perhaps try browsing all files for the game Diablo III and upload any files you want to share or are missing. This is the only information we could locate:
This patch will update any spanish/Mexico version of Diablo 3 to version 1.03. The patch includes many class changes, battle.net changes, bug fixes and item changes.