In the automatic position, when the light sensor detects low-light then it will switch the headlights onto low-beam immediately. The angel eyes and the xenons light up at exactly the same moment. This is essentially they same as if you manually turn the light know to the low-beam position directly from the 'off' position.
Adaptive headlights with bi-xenon bulbs (optional in 2002 models and later) use mirrors and shutters to actively aim the headlights, directing low beams in the same direction as high beams. Headlight assembly seals can wear out over time resulting in water leaks and repeat bulb failures. This article will show you how to remove your E46 headlights. 105 posts ยท Joined 2013. #1 ยท Mar 7, 2013. I have a 2004 330ci and the one Xenon headlight refuses to work. I have swapped the bulbs, ballast and ignitor to the other side and they all work. I have also taken each headlight assembly out and swapped them to the other side and they both work. I've checked the tail light connections in the trunk OEM Bi-Xenon Headlight Housings, Ballasts & Bulbs. The highest quality option, and one that will look great and work great for years to come. They also will help improve resale value of your car, and after the conversion it will be nearly impossible for anyone to tell your car ever had halogens in the first place. R0RM5xc.