So we just got back on Sunday from a 500 mile trip in my wife’s 2008 xl7. It had zero issues. Until Monday that is the car over heated blew coolant everywhere. (Burnt my wife’s arm cuz the cap blew off the when she bumped it). And went into safe mode p1258. Well we let it cool down and refilled the coolant with distilled water and and drove it home about 6 miles did fine. Never got above operating temp. Now since this happened I haven’t heard the fans come one once (always heard them running before). So I changed the temp sensor and the fan relay and still nothing. But the car keeps getting hot while sitting in traffic. I need help this is my wife’s main transportation. Please and thanks in advance.