DIY - Retrofitting an M3 (or 135i/1M) Instrument Cluster

[Donkeyshins]

Originally Posted by PDX.e82

Yes, latency timer is set to 1 ms, COM1 selected in device manager, etc. etc.

I was able to successfully code my FRM3 to replace my FRM2 for my 135i xenon retrofit last night via Coding Tool and NCS Expert. It's just INPA that's having trouble.

And while using the BimmerGeeks SP-Datens files, WinKFP won't show "FRM3R" in the ECU family menu, just FRM2 and FRMPL2, any ideas? Do I need a more recent E89 Datens file?

If you've got the K-DCAN cable with the pushbutton for selecting new vs. old E-series, are you sure it isn't accidentally set to 'old'? I was running into problems with INPA communications until I figured out that when my son used my cable on his E46, he forgot to switch it back to E8x/E9x configuration.