Problem with HID/headlight bulb
The other night, I noticed that my passenger headlight goes out about 10 seconds after I turn on the headlights. Every time I turn the headlight on/off, the light turns on again but shuts off everytime after about 10 seconds.
My question is: Is the issue related to the HID bulb or the ballast? I have aftermarket 6k HIDs that have been in the car for about 4 years now. That's the only modification ever done to the headlights.
I know I could just swap the bulbs to find out, but before I take the bumper and headlights out (my hands won't fit in there), does anyone have any input? It'd be much appreciated.