Seeking Help With HID Diagnosis

[Mark Rosenkrantz]

Probably the ballast, which is more expensive than the bulbs!

Oh, and when replacing one bulb, generally best to do both... the color
changes after time.

Mark Rosenkrantz

On Mon, Oct 3, 2011 at 10:00 PM, <gbowles at cansafe.com> wrote:

> My Audi's all have halogen headlights. The help I'm looking for is for the
> wife's Volvo, so NAC here.
>
> A while back the 2004 XC70 began showing the "bulb failure, low beam" error
> message on the dash. The driver side headlight was out. My immediate thought
> was, "Oh oh, it's a $150 bulb problem". Then the message disappeared and the
> bulb was working.
>
> I haven't found any pattern to it, but every so often the bulb goes out and
> the message re-appears. Eventually it will come back on and resume normal
> operation. I have found that if I shut down and re-start when the error
> appears everything returns to normal, for  while. This is beginning to sound
> like Windoze, don't you think.
>
> My experience with HID is zero so I hope someone here can shed so light on
> what is going on. Do I just replace the lamps and hope that's the problem?
> (With halogens that's what I'd do and it would cost me $25.) There are other
> (costly) components that could be the problem, so trial & error could get
> expensive. I haven't found much info on HID diagnosis other than "check the
> connections for corrosion" which is what I plan to do next.
>
> Any advice is appreciated. TIA
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Mr. Greville H. Bowles
> Ralston CanSafe
> 525 Glengarry Cres.
> Fergus, Ontario  N1M 2W8
> Phone: (519) 787-1297  Ext. 39
> Fax:   1-800-669-2392
> E-mail:   gbowles at cansafe.com
> www.cansafe.com
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
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