Join Date: Dec 2008
Location: Haslett, MI, USA, Earth
Drives: 2007 Kia Rondo EX V6 2.7 5P A/T; 2009 Hyundai Elantra GLS, 2.0, I4, 5 SPD M/T sedan
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have you ever noticed that before?
Well, this temperature (185F is 85C) is normal, low normal operating temperature.
200F (93C) is not too high though. Water boils at 212F (100C), but coolant has higher boiling point (230F, 110C) in pressurized system.
So, it is not overheating yet. If you do not go over 95C, 203F, you should be fine.
You see, the thing is that in the front of coolant radiator is A/C radiator. If A/C radiator is hot then air cooling A/C radiator first will be already hot when reaches coolant radiator. This makes coolant hotter and forces fans to stay on.
Here is the trick. A/C has to be fully charged (not OVERCHARGED nor UNDERCHARGED) so that A/C radiator does not have to cool A/C fluid all the time.
Overheating will take place when A/C is not fully charged. A/C compressor will be constantly on or with very short breaks. A/C radiator will become hot, much hotter than it should be - and rest you know...
Have A/C checked by someone who is able to check BOTH - high and low pressure.
But as of now I would say it works fine.
BTW. My 2007 Rondo gets around 82-85 while driving, idle (on hot) may get to 93. When A/C is on while driving not less than 85, normally around 87, idle up to 95. And it is a new car (well, 1 year old). All temp in C.