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Old 12-22-2010, 04:33 PM   #16
E36is
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faulty coolant sensor, or check the sensor connection.
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Old 12-27-2010, 09:46 AM   #17
darkis_light
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coolant sensor

Maybe the coolant sensor is coroded like mine was. See this thread:

http://www.maxbimmer.com/forums/show...coolant+sensor
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Old 12-29-2010, 11:53 AM   #18
sparkybp
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I'd like to say that I have been through this same problem. Check coolant level was being displayed I checked the level and it seemed fine. Well if you open both bleeder and overflow tank cap slowly pour coolant mixture in the overflow tank and you will see that it sort of acts like a gravity feed system it will level itself out by pushing more coolant through the system releasing small bubbles through the bleeder screw. Also make sure that your heat and fan are at max temp and speed without the motor started for this procedure(believe its outlined in the Bentley manual). Also if you seem to overheat at idle briefly, i know its not a wise choice but i recommend hitting your accelerator pedal for a second or two. If the needle doesn't drop right away then shut the car off and proceed with conventional cooling system diagnostic. The reason for the gas pedal in such a situation is because I've also had it happen where some plastic from I honestly don't remeber what it was from broke inside my expansion tank and seemed to get lodged in a way to impede coolant flow and a slight tap of the gas would free it up temporarily. PS I remember reading something above about making the TEMP gauge more accurate or responsive? The frigging thing reacts in a matter of miliseconds to changes in temperature. I think it's gonna be just fine.
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Old 12-30-2010, 12:56 PM   #19
sproule905
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this took me almost a weeks worth of bleeding to get the air out.. i did this each morning before work...
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