Mercedes-Benz S320 Forum : “all lights on”

all lights on

my car stop on us and the part that goes through the heater and runs the water all the way through the car at all
times broke.  We kept putting water in the car stop and let it cooled down and by the time we got home it ran hot
again.  We replace the small part which was $41 and all the lights are still on shutting water out of the tail pipe.  What
else could be wrong now?