HEADLIGHTS OF 2004 BMW 330I WITH XENONS ARE MADE BY MANUFACTURING COMPANY "ZKW" AND BOUND TO FAIL. VISIBILITY AND LIGHT OUTPUT BECOMES EXTREMELY POOR, THAT YOU MUST DRIVE AROUND WITH EXTRA LIGHTS, OR HIGH BEAMS ON. WHEN YOU OPEN UP THE REFLECTIVE CASE, YOU WILL SEE THAT BOTH FRONT HEADLIGHTS DRIVER AND PASSENGER SIDE HAVE BURNT BOWLS, WHICH DO NOT ALLOW ANY LIGHT OUTPUT AT ALL. THIS IS EXTREMELY DANGEROUS, I HAVE GOTTEN INTO AN ACCIDENT DUE TO NOT BEING ABLE TO SEE FAR DISTANCE AT NIGHT. PLEASE ADDRESS AND INVESTIGATE THIS MATTER IMMEDIATELY. *TR