Does ur passenger light work fine? If so swap the bulbs and see what happens. Im no xenon expert but i did this when i had my old 330i and the passengers side was brighter and off color with both bulbs. A week later it just stopped working so i took it out and found out that water had got inside the balast and ruined it.
Last edited by Toofpik; 01-28-2012 at 01:07 AM.