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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > BMW Coding > Adaptive xenon headlight recoding question



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      12-07-2017, 11:51 PM   #1
m3rxn
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Adaptive xenon headlight recoding question

I need to take my car to dealer and/or Indy shop soon for adaptive xenon recalibration/recoding for driver side headlight. I had the adaptive xenon malfunction light on dash after carwash weeks ago likely from water leaking in to headlight from a broken back cover. I've since replaced the adaptive xenon module ( un-coded ) and new back cover myself, and adaptive headlight malfunction light on dash is gone. However, the driver side xenon projector is pointed outward towards left ( lazy eye look ). Xenon projector still goes up and down then to left upon starting, so I think the motor/server for projector still works. Likely the new module needs recalibration/recoding back to factory specifications ( for xenon projector to point forward again ). I'm concerned because car has GIAC stage 2 software tune/flash + XHp stage 3 TCU tranny flash.


My question is that when the techs recalibrate/recode the new adaptive xenon module, do they have to recalibrate the whole car or can the bypass just to adaptive xenon headlight relcalibration : as to NOT erase or eliminate my existing flash tunes ( GIAC + XhP ). Sorry for long post and thanks in advance!

Rob
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      12-08-2017, 01:51 AM   #2
RocketSurgeon
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The dealership uses ISTA-P for this. Depending on your i-level, ISTA might request a software update before allowing coding of the ALC module. Since you have XHP, I'm assuming you have a K+DCAN cable. You could code the module yourself in about 30 seconds with NCS Expert.
bimmergeeks.net/downloads
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      12-08-2017, 02:47 AM   #3
m3rxn
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^ thanks for input RocketSurgeon. I do have a Bimmergeeks K+ DCAN cable, but I may just have Bimmergeeks recode the ALC module remotely as I don't want to screw things up. I believe Bimmergeeks provides remote coding services if my memory serves me right. Going to try to avoid the dealership in this case.
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      12-09-2017, 04:17 AM   #4
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Had local Indy shop do the recoding. All is good now and adaptive xenon projectors are both pointed forwards. Cost me 85$ but totally worth it !
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      12-09-2017, 02:23 PM   #5
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