[tex0z]

Hi,

I have a m340i with 76k miles on it and my comfort access quit working. The walk up and walk away to unlock and lock doesn't work. The door handle comfort access on all four handles doesn't work either. I was able to get a fault code numbed as 80410B which states "left door antenna: antenna fault or line interruption".

Things I have done to troubleshoot
- Replaced Key Battery
- Tested with spare key
- Cleared Error with Bimmerlink
- checked battery health

I found the part number for a replacement driver side antenna but I couldn't find the antenna on the driver's side. I found this online but could not find where it was showing it was (link below). Maybe I am not looking in the right spot. If anyone has any advice that would be much appreciated.

https://www.realoem.com/bmw/enUS/sho...diagId=65_3148