F10 headlight,,,customer complaint was the adaptive headlight was inop,,,,I found the right side headlight cover in the rear was off,,,,and water got inside the headlight,,,,and damaged the headlight module and connectors inside the headlight,,,,so both those holes on the bottom of the headlight,,,,with the wiring coming out of them,,,,that’s where the LED halo ring bulbs go,,,,so on these headlight,,,individual halo rings can go out on these LED headlights.
Here the turn signal LED unit,,,,this just bolts into the rear of the headlight.
Ok this is the backside of the turn signal LED,,,,you see that funny gray sealant,,,,you can also see that stuff where the LED halo ring get bolted in,,,,,this stuff came from the factory.
So for the new headlight make sure you get new seals for the LED modules,,,,so no water gets inside the headlight an again,,,,with the new headlight modules,,,you have to encode the modules and also perform a calibration of the headlights and LED light,,,if you don’t calibrate them the LED lights won’t work,,,,yes I know the stupidest thing I have seen,,,,BMW over engineering.
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bmwtechnician 
Hi, this happened to my f10 and all but the dipped beam dont work on driver headlight! I didnt tighten the car enough and popped off and go wet! Can the module be saved or do i need a new one? The vertical aim works and rarely the adaptive headlights work too.
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Sorry to hear that,,,you will probably need a new one,,,,sorry
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And the new one needs to be coded right?
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Yes encode module and headlights calibrated
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Would the connections on the headlight be damaged or just the module?
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The connections could be damaged if water sat in the connection for to long and started to rust,,,,I have seen this before
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Hi,
That’s as usual for the info provide on this site.
I have a 2011 F10 550i m sport with adaptive Xenon headlights.
It is right hand drive
The daytime running halo rings on then left side stopped working and I’m getting a “daytime and side light “ error.
I swapped headlights and the right hand one worked on the left side. So the signal is being revived on that side. Next I swapped the headlight modules. The headlight which was originally working continues to work with the left module in it. It also works on both sides of the car.
Could it be the LED from the left (passenger) headlight?
What other things could it be?
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Sorry had some typos in the first post so I’m resubmitting with corrections.
Hi,
Thanks for the info you post on this site. Very helpful!
I have a 2011 F10 550i m sport with adaptive Xenon headlights.
It is right hand drive
The daytime running halo rings on then left side stopped working and I’m getting a “daytime and side light “ error.
I swapped headlights and the right hand one worked on the left side. So the signal is being received on that side. Next I swapped the headlight modules. The headlight which was originally working continues to work with the left module in it. It also works on both sides of the car.
Could it be the LED from the left (passenger) headlight?
What other things could it be?
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Sound like you covered the basic stuff,,,,so what happens when you swapped complete headlight does the left one not work on the right side,,,,because I think you might have a bad LED or a bad headlight
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Confirmed it’s the LED module on the left.
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Good job
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Hi. I had a TSM module replaced on a F10 Adaptive Xenon headlight and it was reprogrammed to get the vertical aim working again. Problem is the angel eyes wont work. Could this be a calibration or initialization issue that you mention elsewhere? The coding guy is stumped and thinks its a hard failure but they worked perfectly before the module went.
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Yes it could be
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