Hi all,
Tried to update the maps on my 09 Z4 as theyre from 2009 and was told (after buying) that the firmware needs updating first. Annoyingly, I have no USB interface in the armrest so cannot do it that way. I have an ethernet to OBDII cable I used to code my old i3 using BMW E-Sys and ISTA if that helps?
I assume I need to update it via obd or some other way? I tried searching for this but seems hard to find anything helpful but maybe I missed something.
Any help would be greatly appreciated
Thanks!
Tried to update the maps on my 09 Z4 as theyre from 2009 and was told (after buying) that the firmware needs updating first. Annoyingly, I have no USB interface in the armrest so cannot do it that way. I have an ethernet to OBDII cable I used to code my old i3 using BMW E-Sys and ISTA if that helps?
I assume I need to update it via obd or some other way? I tried searching for this but seems hard to find anything helpful but maybe I missed something.
Any help would be greatly appreciated

Thanks!