Headlight Trouble

[chrissoto312]

Originally Posted by TerminatorX5

i will be home in a few hours, and i can check the WDS blueprints. your issue can be mechanical, stripped teeth on motor gear, or electronic. if you have time, stand by and we will try to narrow problem down.once more, since i am retarded, and need info repeated several times, - the right "eye" does not move left/right. what about the left "eye"? can you check to see if left "eye moves or makes an attempt to move left/right?

Lol, it's ok. I'll repeat it as many times as necessary to make sure I can get the right part.
The right eye will move the one time to the right but will not return to it's original position. If I make all left hand turns, the indicator noes not blink, it will remain a steady green.
Left eye moves I am sure, but not certain.

[Ricky Bobby]

so looks like left eye is functional completely, right eye is upon startup but does not go back to default position?

[chrissoto312]

Originally Posted by Ricky Bobby

so looks like left eye is functional completely, right eye is upon startup but does not go back to default position?

That is correct sir!

[TerminatorX5]

what year/month is your car? do you have only rear air or all 4 corners air suspension (EHC or EHC2?)

when the right "eye" moves to the right upon initial check-up sequence, at which moment does it go back to center position? because at the next start-up sequesnce, the light moves to the right again, right? otherwise, the light would have spun around and shone inside... lol...

[TwinsPoppa]

Blinking light at the switch means the adaptive function is not working.

Can you actually see the headlight aim/moving right? Then when you center the steering wheel it stays pointed to the right?


If so, then I believe its probably not a bad stepper motor inside the headlight. I'm not sure if the stepper motor controls vertical movement but I know it controls horizontal movement.

Maybe your projector is loose and is not mounted all the way?
http://www.xoutpost.com/bmw-sav-forums/x5-e53-forum/32782-xenon-headlight-problem.html


There are also headlight aiming adjusting knobs for vertical & horizontal adjustment. Maybe the horizontal is just adjusted out of range?

[TerminatorX5]

while you are at this, also check fuses 6 and 15 in glove compartment - make sure they are good...

Also, i will stand corrected, the LWR module is only up/down controller, you have AHL module, which is the up/down, and left/right controller... anyways, we need to see if your issue is mechanical, as Twins mentioned, and the blinking light reports inability of electronics to control the stepper motor (it gets the info back on the motor position), or the AHL module is corrupted...

[TerminatorX5]

to check the mechanicals of the light, you might need to remove the headlight and check the stepping motor. there are three torx screws holding the cover... the motor is probably available from ECS, if THE motor is the problem... 67168352206... i am checking to see if this motor controls both, the vertical and lateral movements... there might be TWO motors inside the housing...

[chrissoto312]

Originally Posted by TwinsPoppa

Blinking light at the switch means the adaptive function is not working.

Can you actually see the headlight aim/moving right? Then when you center the steering wheel it stays pointed to the right?


If so, then I believe its probably not a bad stepper motor inside the headlight. I'm not sure if the stepper motor controls vertical movement but I know it controls horizontal movement.

Maybe your projector is loose and is not mounted all the way?
http://www.xoutpost.com/bmw-sav-forums/x5-e53-forum/32782-xenon-headlight-problem.html


There are also headlight aiming adjusting knobs for vertical & horizontal adjustment. Maybe the horizontal is just adjusted out of range?

Yes, I can see the headlight move to the right and then it doesn't re-align

[chrissoto312]

Originally Posted by TerminatorX5

while you are at this, also check fuses 6 and 15 in glove compartment - make sure they are good...

Also, i will stand corrected, the LWR module is only up/down controller, you have AHL module, which is the up/down, and left/right controller... anyways, we need to see if your issue is mechanical, as Twins mentioned, and the blinking light reports inability of electronics to control the stepper motor (it gets the info back on the motor position), or the AHL module is corrupted...

Ok, just checked fuses 6 & 15. Both are good.

[chrissoto312]

Originally Posted by TwinsPoppa

Blinking light at the switch means the adaptive function is not working.

Can you actually see the headlight aim/moving right? Then when you center the steering wheel it stays pointed to the right?


If so, then I believe its probably not a bad stepper motor inside the headlight. I'm not sure if the stepper motor controls vertical movement but I know it controls horizontal movement.

Maybe your projector is loose and is not mounted all the way?
http://www.xoutpost.com/bmw-sav-forums/x5-e53-forum/32782-xenon-headlight-problem.html


There are also headlight aiming adjusting knobs for vertical & horizontal adjustment. Maybe the horizontal is just adjusted out of range?

No, projector is mounted right. I checked the other headlight, it looks the same.