2003 E46 M3 - HID question

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  1. 2003 E46 M3 - HID question 
    #1
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    gscot's Car Details
    Model of Car:
    M3
    Year of Manufacture:
    03
    Transmission Type:
    manual
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    Folks, my right front bulb on my M3 is playing up.

    Sometimes it fires up but other times the blown headlight bulb shows on the dash and I have to turn the lights on and off a couple of times to get it to fire up. It also, sometimes, looks a bit whiter than the left hand bulb.

    As this is the first car I've had with HIDs, is this how they fail?
    To me the bulb should usually just blow. Seeing as I can get it to come on (eventually!) is there something else I'm missing? One of my mates E46 M3 is showing exactly the same symptoms. I'm hoping this is a common problem with a simple solution!

    I've tried switching the bulbs over but as it's an intermittent fault, it hasn't really enlightened me!

    How do HID bulbs look when they are blown? Because when I remove the bulb, it looks fine.

    Any help or words of wisdom would be appreciated!
    Last edited by mark@vorny.co.uk; 13-11-2010 at 17:21.
     
     

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    #2
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    AlfonsoX's Car Details
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    I'm no HID expert but i think when they are blown (or at least on the way out) they are slightly cloudy inside so you can't see the electrodes as clearly. Also they tend to go off white and become slightly more pink, fading to a purple-ish colour whilst switched on. As they begin to fail they require more current to remain white, but the ballasts can only deliver a set current.

    Sorry I can't give you a definitive answer.

    are there any obvious burn marks on the electrodes that you can see?

    just like halogen bulbs remember to handle the holders rather than the glass and wipe them if your skin does touch the glass. the oils from the skin cause the bulb to heat up/cool down at different rates putting more stress on the bulb
     
     

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    #3
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    shamM3's Car Details
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    Ignitor is common to go on these types.
     
     

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    #4
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    sam1832's Car Details
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    2004
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    sham beat me to it, sounds like an ignitor as you can get them to go on eventually
     
     

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    #5
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    Kevin Whittaker's Car Details
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    I had a similar problem on an aftermarket system I fitted to out MINI Cooper, igniter problem for me.
     
     

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