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11-25-2012, 08:27 AM | #1 |
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Adaptive Headlights Not Working - Any way to check failure point?
Recently my wifes 135 blew an orange corner bulb on the passanger side. I swapped it out and it worked fine. After firing the car back up and driving it around, the adaptive headlight warning came on. Now it wont light up when turing the wheel left/right.
Everything else seems to work; Low/High beams Auto Level (up/down) on start-up Angel Eyes, etc. Is there a way to troubleshoot what the failure point is? I'd drop it off at the dealership but the damn car is 2 months out of warranty. Of course. If I can figure out what's not working, I can certainly replace it myself. Last edited by M3to335; 11-25-2012 at 08:47 AM.. |
11-25-2012, 09:06 AM | #2 | |
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Here is another thread on the issue: http://www.1addicts.com/forums/showt...ive+headlights |
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11-25-2012, 09:54 AM | #3 |
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Don't want to state the obvious, but I the conditions apply (and I learned the hard way):
a) the headlight switch has to be in Auto position b) if you're parked, only the passenger side will move c) when moving, both sides should move. |
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11-25-2012, 10:22 AM | #4 | |
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Yes, all those apply. Keep in mind, the warning light is on the dash, so yes, its not functioning properly. |
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11-25-2012, 10:36 AM | #5 |
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Did you use a BMW bulb?
How did you replace the orange corner bulb? Did you remove the headlamp housing?
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11-25-2012, 11:10 AM | #6 | |
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I have heard the stepper motors themselves are unreliable, but I have not seen a separate part number for them. Sometimes they become detached from the ball joint, but that usually wouldn't throw a code. If a motor has failed, and a code has been thrown, I would think the controller would be mart enough not to try and drive EITHER motor. There is a separate ACL module that does have a part number, that is most likely the motor controller. Other than reading the code, I don't know of a simple way to determine if it is the controller or the stepper. Unfortunately, I have not heard anyone having successfully repaired this feature without replacing the entire headlight assembly. |
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11-26-2012, 06:25 AM | #7 | ||
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11-26-2012, 11:20 AM | #8 | ||
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I was going to bring it in to bm to have the whole unit replaced but I got new ballast and replaced a few things in there... I'll post pics of what I did when i get home from work |
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03-25-2016, 12:56 PM | #9 |
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And yet another unsolved thread, please delete this useless information. The headlights are repairable and thats why we have this forum.
Last edited by Mr Gasser; 03-25-2016 at 06:00 PM.. |
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03-27-2016, 07:00 PM | #10 | |
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03-28-2016, 01:38 PM | #11 |
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08-31-2016, 06:45 PM | #13 |
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So I need some help and I looked but couldn't find a thread too similar. I installed aftermarket angel eyes and now the adaptive feature does not work. So I'm not completely sure on if this is fixable on my end or if it's fried... Please help!
Also I just got both lights completely replaced because the mounts were broken I would hate to take it right back to the dealership. |
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