E30 OBC Question

[1990m3]

Looking at a '91 318is and it has the 6 button OBC in it, just wondering if the car came pre-wired for the full OBC like my M3 has?

I'd really like to be able to replace the 6 button OBC with the upgraded one, but have minimal interest in running wires and installing all those sensors?

[AdamF 88iS]

They are not pre-wired. It's a bit work to do the conversion.

[1990m3]

thanks. I was hoping it was pre-wired. I know now-a-days BMW does stuff like that for it's CD changers and what not

[Alecs MacDonald]

I am sure its not a fun install but here is a good write-up from the ever so helpful strictlyeta.net

http://www.strictlyeta.net/technical/obcretrofit.html