Hi all sorry for the long posy I've got an x3 with adaptive headlights the drivers side Angel eyes don't work but passenger side do I swapped the tms unit over from one side to the other yesterday then neither worked so put back to how it was and passenger side still working does anyone know if the tms module has to be coded for each side and this could be the reason it didn't work when swapped over? 
Many thanks

Morning Ben

You need someone with ISTA/INPA Diagnostics as that will also in WIS (Workshop Information System) and TIS (Technical Information System) 

I will look later but just back from the Horses and now off to Dog Training when home I will fire up the Garage Laptop and see what I can find

Dave

Ok great thank you I've had it code read and it said fault code 805e3a daytime lights voltage lower than target value if that helps anymore?

Hi Ben

Back home again the code you have is pointing to the LED bulbs for the angle eyes are faulty. There are 2 in each headlight. Just replace them with new ones and make sure the semi transparent seals are there to avoid water ingress. Then initialize the headlights via ISTA and all should be good.

Dave

Hi Dave many thanks am I wrong in thinking the bulbs are built in and have to break the headlight apart? 

Sorry to be a pain but what would cause both sides to no work whe  I swap the tms units from one side to the other if was the bulbs?

Hi Dave 

Sorry to be a pain if it was the bulbs how come when I swap the tms modules from one side to the other neither work but when I put them back in sides they come from originally then the passenger angel eyes work again 

Many thanks

Morning Ben

The TMS units are probably coded Left or Right when you swap it you need to initialise the Headlamp unit using ISTA or another coding application if you have it

I have never done it myself so just reading TIS and WIS from my copy of ISTA which is good up to 2019 when BMW decided to pull the plug

Is there no help on You Tube normally quite a few Video How Too's there

Hope this helps 

Dave

Hi Dave 

Thanks for your reply no can't seem to find any videos is it likely the angel eye led inside the headlight have failed then going by that fault code? Could it still possibly be the tms ? 

 

Many thanks

Ben

Hi Ben

Without carrying out a full test on each TMS it is difficult to say. I would check the internet for any test criteria then start with the good one note the results then test the faulty one to compare.

All I found on the TIS is it is likely to be the LED's (2 of them) how simple it is to change them I have no idea.

As an Example I recently had a failed Halo/Parking lamp on my E70 checked ISTA says remove cover 3 screws remove 2 further screws and the lamp is out Ha Ha Ha. What i discovered in WIS was a note that says remove Headlamp from the car to access the screws.

Dave