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Constant outside air temperature displayed in dash

Discussion in 'A6/S6/Allroad forum (C5 Chassis)' started by brasiliangringo, Feb 6, 2012.

  1. brasiliangringo
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    brasiliangringo Member

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    [Feb 6, 2012]
    The ambient temperature display measures a fixed 78-79Farenheit & never changes. I have used VAG Com and there are no error codes reported on the outside temp sensor which is positioned behind the front bumper. I also unplugged it at the 'plug end'(fairly sure it was the right plug - passenger side under and next to small filler tank - hydraulics) and the dash ambient temp reading remained the same ie 78F - even with the sensor disconnected ?! Yes, it is a UK car, so not sure why its not in C.

    Should also add the dash has a faulty water temp gauge which is a cluster issue..

    Any ideas?
    2000 c5 A6 Avant 2.4
    Last edited: Feb 6, 2012
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  3. elan2s
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    elan2s Member

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    [Feb 7, 2012]
    Assume the air con displays are also in F. To switch to C [TABLE="class: tborder, width: 100%, align: center"]

    [TD="class: alt1, bgcolor: #FFFFFF"]Press and hold the recirculation button. Then press the temperature up ("+") button to switch between degrees Celsius & Fahrenheit on the Climate Control Temperature and Instrument Panel Outside Temperature displays.[/TD]
    [/TABLE]


    As to why the temp is stuck can't help you on that, may be related to the cluster issue
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