HI 1999 406 2.0 Radiator fan ran on after car turned off. Battery ran flat. I had to disconnect battery every time i parked. did a 50 mile run, didn't help. Engine temp didn't go above 90 on the dash guage. A bit of fiddling about, squashed a few hoses to maybe move an air bubble, removed a couple of leaves. Now seems ok. Should i be looking for a thermostat, if so, where is it. Would alot of rain & puddles mabe cause a short in a sensor somwhere ? maybe someone could help.