m54b30 with MS45.1

[CavemanGB]

I can get my hands on a 2006 X3 for a pretty good price and I want to pull the motor out and use it for my swap. As I'm researching the swap I see a bunch of old threads that say you cant use the MS45.1 DME. Is this still a problem? I saw some info about converting but I dont know if thats worth the hassle.

I dont know if im putting in the wrong search terms or just that everyone avoids this combo?

[2mAn]

Im pretty sure the ECU can be hacked nowadays. nando is the guy you'll want to confirm this with.

[TobyB]

https://www.ms4x.net/index.php?title=Siemens_MS45

TerraPhantm on the E46 fanatics board (and here, sometimes) is also a good resource.

t
staying ms43 for now

[nando]

You can definitely use MS45.1. Terraphantam and I developed the EWS delete like 5 years ago, lol. There's just not huge demand, so nobody knows about it. MS45 is definitely an upgrade over MS43 - you get better OBD diagnostics, and wideband O2 sensors from the factory. :)

[CavemanGB]

You can definitely use MS45.1. Terraphantam and I developed the EWS delete like 5 years ago, lol. There's just not huge demand, so nobody knows about it. MS45 is definitely an upgrade over MS43 - you get better OBD diagnostics, and wideband O2 sensors from the factory. :)

Do you guys have a site or should I PM ya?

NVM just read your signature 😂

[Solarian]

What about the wiring? I'm in the same situation and no one seems to make an adapter harness for the MS45.