EM TuningChris Nott
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  1. #1
    Slipping at 3.5Krpm

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    Bulb Warning after HID install

    I know a lot of people here have retro fitted HID lamps for dipped beam.

    I used a serious vision kit supplied by JBR Performance and although its very good quality its a generic kit so the instructions aren't perfect.

    How do you get around the bulb out warning on the DIS? Can I switch it off via VAG-COM or is there something I can short?

    Thanks
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  3. #2
    Neutral

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    hooking the hids up with a relay, would most likely do the trick

  4. #3
    timps's Avatar
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    You need to wire in a resistor to fool the bulb check circuit.

  5. #4
    Slipping at 3.5Krpm

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    Yeah, I already used a relay circuit but you still take the original connectors out of the loop by wiring in HIDs.

    I resistor would certainly work but does anyone know which value I should use?
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  6. #5
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    First let me say that this is NOT based on something I've heard/read from someone who's actually had this problem and used a resistor to solve it. I've just used power and resistance maths to have a stab...

    If I understand what you're trying to do (fool the DIS that you have a normal bulb completing the circuit when you actually don't) - I guess it would be something like...

    a) If you're drawing power from somewhere else entirely and are just using a relay which will draw negligible wattage from the original circuit, and you need to simulate a 55W Halogen bulb sitting on the 12V line; that would require a 2.618 ohm (if we're splitting hairs ) resistor if my maths doesn't fail me.

    or (less likely I guess)

    b) If you have a 35W Xenon bulb somehow on the lines where you used to have a 55W Halogen bulb) - you need to connect the circuit and simulate an additional 20W draw on the 12V line - that would require a 7.2 ohm resistor.

    Anyway like I say, that's more science than experience, but I think I'm on the right lines...

    Regards,

    Rob.
    Last edited by FactionOne; 20th December 2006 at 22:38.

  7. #6
    FactionOne's Avatar
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    http://www.sengpielaudio.com/calculator-ohm.htm

    That should help if you want to check or alter the numbers

    Regards,

    Rob.

  8. #7
    Slipping at 3.5Krpm

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    Cool, thanks!!

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