BMW Repair Questions? Ask a Mechanic for Answers ASAP
Hello. Which bulb is not working? Daytime driving lights?The entire headlight?Do you have Xenon lights in this vehicle? Which bulb did you replace? Did you use a BMW bulb?
Thank you. -Roger BMW Master
Try this. You know you have a good bulb in one side of the headlight. Try swapping that side the this and also try the other bulb in the known good side.
Let me know your results.
If you find a successful diagnosis please accept the answer. If I can help you further let me know and I will be glad to give you some more advise. Even after an accept we can still converse on this post.
-Roger BMW Master Tech
I hope this led to a fix for your vehicle. Please hit the Accept Answer, we can still reply to this post after it has been accepted.
This is the result I expected however it is always the firs thing that should be tried. You have stated that you have xenon bulbs. This system has a control unit and an igniter unit. These systems use extremely high voltage that can cause death. Do not probe these connections with the key on! This is something we see in the dealership. Is your vehicle still under the manufacturer's warranty? The problem is most likely the control unit and igniter, we replace these as a set. The headlamp will need to be removed and sometimes dissassembled to replace these components. I think we have a service bulletin on this telling us to replace both sides for both headlights. If your vehicle is under warranty I can provide you with the information for your dealer if apllicable to your vehicle.
Please Accept this Answer, you can still reply to this post even after the Accept.
Thank you. Let me know if I can help further.
I will send it later tonight, I have to run it through the scanner because this file will not cut and paste. I will see if I can transfer it to you by around 6p.m.
I will send the accept with the information.
The last time I tried to post a PDF file to this site it did not let me. Can you send your e-mail address to send the bulletin to.
Hello. The information was sent at 6:16 p.m. Please review and let me know if you have a problem with the e-mail. Please hit the Accept Answer. Please leave a short message on the feedback. Thank you.