"Drive moderately. Apply additional braking when necessary. Consult nearest service center."

[808Pants]

Thanks, Art & Nomad - I've downloaded two versions of ISTA now, but will have to wait until I'm back on the right island to check for errors.

As to:

...the latest psdzdata for flashing to the newest I-level...

I don't have a clue as to what this is about, but probably don't need to know, either, at least until I've successfully connected with ISTA and, with luck, found the brake-related code. I suspect Youtube would cover this somewhere...?

 

[alohart]

I don't have a clue as to what this is about, but probably don't need to know, either, at least until I've successfully connected with ISTA and, with luck, found the brake-related code.

The huge psdzdata file is needed only for ISTA programming, not for diagnosis. My old MacBook doesn't have enough free disk space to install the psdzdata file which is probably >300 GB when expanded.

Apparently, the psdzdata file includes, probably among other things, the system software for every recent BMW model when that version of the psdzdata file was created (no wonder it's huge!). ISTA 4.39.20 is recent enough to work well with all U.S. i3's, and psdzdata 4.39.20 would contain i3 system software recent enough to increase the integration level to probably a 2021 version. There probably haven't been many (any?) significant i3 system software changes since 2021 considering that i3 production ceased in 2022 and probably few hardware changes were made since the 2018 LCI.

A U.S. i3 owner has reported successfully increasing the integration level of his i3 using ISTA 4.39.20 and a recent psdzdata version using only the OBD to Ethernet cable used for ISTA diagnosis, not the recommended expensive ICOM cable, while leaving his i3 in drive ready state so that the DC-DC converter would provide 12 V power rather than the recommended external 12 V power supply. No connection to a BMW server is required. He admits that had something gone wrong, he could have bricked his i3. I never plan to use ISTA for programming, so don't need to install a psdzdata file.

 

[alohart]

I've downloaded two versions of ISTA now, but will have to wait until I'm back on the right island to check for errors.

You back on Oʻahu?