Yes you right i had to change the water pump, got the whole pump at the dealer and to get th old one out andput the new one in i had to take the battery and the battery tray out..
i too had the plastic cracked off the wiring going from the positive battery post to the Power box with all the fuses in them under the hood... seems like a pretty bad job of putting wires down and the quality of the wires is pretty bad also.. and what caused it to break down??? the battery acid, dont think so, probably the heat from the engine as i notice that the contours are pretty hot under the engine compared to alot of other cars....