Mondial QV A/C Evaporator Temperatur Sensor | FerrariChat

Mondial QV A/C Evaporator Temperatur Sensor

Discussion in 'Mondial' started by afterburner, Aug 8, 2009.

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  1. afterburner

    afterburner F1 Rookie
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    Jun 20, 2008
    3,213
    Hong Kong
    #1 afterburner, Aug 8, 2009
    Last edited by a moderator: Sep 7, 2017
    The a/c evaporator sensor on my Mondial QV is faulty; reading 12°C too high.
    So the a/c computer doesn't cut the compressor before the evaporator freezes.
    The high pressure switch cuts the compressor when the pressure builds up due to evaporator freeze.
    This puts high strain on the compressor belt and eventually makes it slip at first, then melt.

    The sensor mounts vertically from the top, and is (theoretically accordign to the book) accessible via the external air intake below the passenger side cowl grill:

    /Users/ursstemmler/Desktop/theory.jpg

    In reality, the the cable disappears into the injection moulded piece HVAC housing. looking more like this:

    /Users/ursstemmler/Desktop/reality.jpg

    Has anyone ever replaced that sensor? If so, how? (without taking ou the IP)
    Or is there another fix for that sensor?
    Thank you for advice!
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  2. mondial5183

    mondial5183 Karting

    Nov 17, 2007
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    #2 mondial5183, Aug 9, 2009
    Hi, to replace it,
    First you have to remove the windshield wipers and the black grills under your windshield. So you will see a metal box that conveys the air, remove it too, and ou will find the sensor.
     
  3. afterburner

    afterburner F1 Rookie
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    Jun 20, 2008
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    #3 afterburner, Sep 5, 2009
    Last edited by a moderator: Sep 7, 2017
    Here a photo of the evaporator sensor cable disappearing into the HVAC unit, taken via the external air intake after removing the black grill and splashwater protection in front of the windshield. No way of getting to the actual sensor... Any fix known? e.g. mounting the sensor from a different position? Thanks for advice!
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