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Thread: Auto on headlights

  1. #1
    Join Date
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    Lightbulb Auto on headlights

    The Auto on headlight setting on my Golf, is a bit weird. It regularly turns the headlights on in broad daylight, and keeps them on. Other times it's getting dark due to stormy weather etc, and it won't turn them on. However driving into an underground carpark, always makes them turn on. I can't work out what degree of light triggers it. I have cleaned the windscreen where the sensor is, but makes no difference. Can the sensors be replaced easily? or is it something else? common issue?

  2. #2
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    Have you done a scan with VCDS?

  3. #3
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    Quote Originally Posted by saabman View Post
    Have you done a scan with VCDS?
    No, I do not have access to do this

  4. #4
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    Tracing problems can be diffcult in these with out it ( actually tracing problems can be difficult even if you do have it )

    probably obvious things but ...

    HAs the windscreen been replaced?

    Is the windscreen clean? The sensor is up the top in the center.

    Are there chips in the glass near the sensor?

  5. #5
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    Quote Originally Posted by saabman View Post
    Tracing problems can be diffcult in these with out it ( actually tracing problems can be difficult even if you do have it )

    probably obvious things but ...

    HAs the windscreen been replaced? - Not Sure

    Is the windscreen clean? The sensor is up the top in the center. - Yes

    Are there chips in the glass near the sensor? - No, all clear
    See replies above

  6. #6
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    I had a look with VCDS the other day and not much info really

    Auto on headlights-img_9255-jpg
    Attached Thumbnails Attached Thumbnails Auto on headlights-img_9255-jpg  

  7. #7
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    What is Highway light function?

  8. #8
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    Quote Originally Posted by BirdManFJ View Post
    What is Highway light function?
    A waste of time is what it is. If you drive at highway speed the headlights turn on, but highway speed is 140km/h+ so never gonna happen legally in Australia.
    A value like 85km/h would make more sense here. I've not heard of any way to change this.
    MK4 GTI - Sold
    MK5 Jetta Turbo - Sold
    MK5 Jetta 2.Slow - Until it dies.

  9. #9
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    Goulburn NSW
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    Quote Originally Posted by BirdManFJ View Post
    What is Highway light function?
    it’s so when your REALY speeding through cops can see you coming

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