OEM HID Light Not Working

[OptyCT]

I have an '05 300C with OEM HID's. About a week ago, I noticed that my driver's side low-beam HID was out. So, I ordered up a couple of replacements from HIDGate, installed it, and it still doesn't work. I then disconnected my passenger side bulb and hooked my original driver's side light, and both replacements to it. No problem...they all worked. I've read here on the forum that people were having problems with their ballasts and that their lights will flicker or go off and come back on. Mine never flickered and, once it went out, it has not come back on (it's been out a little over a week).

Any ideas?

Edit: As a follow-up question, if it is the ballast, is there any way to get to it without taking off the bumper just to check if the cable is loose? It's my understanding that the OEM HID ballast is attached to the underneath/bottom of the headlight assembly. Is this correct?

[LSCto300C]

Your ballast is out. Sometimes they just go *poof* and are done.
There really is no way of getting the headlight out to replace it that is easier than just removing the fascia. There are 4 push-pins up by the grille, then 2 bolts that need to be removed in the fender wells (1 per fender). Once those are out, just pull. It's really quite simple. You're gonna need a ballast though, so I'd start trying to find a good price on one.

[LSCto300C]

There's a used one on ebay right now for 150. On the ebay search bar I entered "300c ballast"
Might wanna keep looking though.

[loudrims_inc]

X2 for new ballast