Originally Posted by
az3579
The headlight being aimed too low can either be a bad alignment of the headlight, a broken autoleveling motor, or a broken leveling sensor or connecting arm.
I got under the car and fidgeted with both leveling sensors and confirmed they are both working. both headlights moved when I manually moved both sensor arms. Both sensor arms appear to be physically intact, the connection to the control arm and subframe appear unbroken.
The autoleveling motor appears to be intact as well, because the autolevel check on startup looks ok. Both headlights raise and lower.
The coupe headlights do not have bowls that burn out. If it is burned out, it's probably because a previous owner ran 55W HIDs in there and that excessive heat caused the issue. This is pretty unlikely, however.
I think that is unlikely too. Can you tell by the color of the bowl in Video #3 if it's burnt?
As far as output being bad, perhaps the Xenon controllers (ballasts) need replacing. Is one side brighter than the other, or are both sides equally dim? Or, am I misunderstanding entirely and the issue isn't the light being dim, but just bad adjustment?
Both sides are equally dim. It appears to be 2 different issues. Lighting is dim on both headlights AND the left headlight is misaligned. The looseness in the left headlight noted in the troubleshooting videos is non-existent in the right headlight.
I can hear a low-volume buzzing sound from the engine bay when the lights are on, if that's relevant.
2004 330Ci ZHP Mysticblau
RIP 1991 E30 325i Cabriolet