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    thermostat for a 2002

    Hello again folks!

    Please help me out with an answer here... When replacing a thermostat (1971 2002) does a lower rating number (such as 71 degrees vs 90 degrees) make the gauge read cooler? Or make the engine stay cooler?

    My dash gauge reads clear up to the red zone even though engine does not smell, act, etc, overly hot. 320i radiator is not very old, but it was recon.

    Thanks in advance!

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    Check the connector on the coolant temp switch.

    It maybe bad or the sensor is bad. Does everything else in the cluster work normally? Mine does the same thing but the needle will drop when I turn the car off. Does not do it all the time but scares me when it does it.

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    Re: thermostat for a 2002

    A lower temperature thermostat opens at a lower temperature therefore that is what you want to make the engine run cooler. Can't remember if the stock thermostat is 70 or 80 degrees.

    However, no matter what thermostat you have, the engine may overheat. As far as I know, all 02s overheat. The best solution for overheating is a 320 radiator, which is easily adpated to an 02.

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    Re: thermostat for a 2002

    C.D. - any thoughts on this subject?

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    C.D. - any thoughts on this subject??


  6. #6
    Arizona 02
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    Heater valve should be open when filling cooling

    system & have the front of the car up on jack stands to help burp the air out of the system, idle engine w/cap off & watch rad water level.

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