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  1. #1
    Registered Member One Ring
    Join Date
    Aug 31 2017
    AZ Member #
    406089
    Location
    Central Ohio

    Overheating but not overheating...

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    At the end of the work day I started my 2012 S5, drove out of my climate-controlled building (60F degrees) into 90F degree weather and within 5-7 minutes I got an alert and beep that I was overheating and should turn off the engine. I was right in the middle of 55mph traffic on a 4 lane highway so I babied it to make it to an exit. Within 3-4 minutes the warning turned off. The weird part is I kept an eye on my analog gauge and it never moved. it stayed in the middle like always. Bad sensor? Thank you guys in advance for any ideas of what caused this! (I searched the forum for something similar but couldn't find anything)

  2. #2
    Established Member Two Rings
    Join Date
    Jan 03 2018
    AZ Member #
    411953
    Location
    Cleveland Ohio

    a lot of people will cite the thermostat on this, apparently that is a weak spot.

  3. #3
    Veteran Member Three Rings NuVega's Avatar
    Join Date
    Feb 06 2010
    AZ Member #
    54578
    Location
    Las Vegas, NV

    If the analog gauge goes from complete cold to middle, then the sensor is working, and possibly the thermostat too because that means it's opening up. Could possibly have a few air bubbles in your system, they can cause slight overheating and disturb the sensor.
    - 2014 S5 3.0T Prestige - : Plain ole S5 w/ a few cosmetic mods...

  4. #4
    Registered Member One Ring
    Join Date
    Aug 31 2017
    AZ Member #
    406089
    Location
    Central Ohio

    Thanks to both of you. I may by a code reader and see from there since you both feel it COULD be SOMETHING and not just a fluke.



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