I have a 2001 325 ci. The other day I got into my car and flipped on the headlights to drive home. The dashboard indicator light came on telling me that my front passenger side headlight was out. I assumed the HID bulb went out, so I ordered 2 new Phillips OEM HID bulbs for $75 total off ebay. I replaced both of them carefully, and when I went to turn on the headlights, the passenger side headlight still didn't work. I assumed there was some loose connection or something. A couple of days later it started working again for a day or so, and then I flip the head lights on the following day, and it doesn't work again. I'm not sure if it's related but I do get a carwash every couple weeks or so, and it's also been super cold here in Chicago lately. It almost seems that it works mostly when I keep my car in the garage all night where it's warmer. Does anyone know what might be causing this? The connector on the back of the HIS bulb looked OK, no corrosion or anything visible. Hopefully someone knows why this is.... Thanks in advance for any help!