I found my way here via search because I'm trying to identify a particular wire and harness in the DME box
It's a single pinned black connector, with Black wire running to the chassis side:
and Red/Blk running from the engine harness:
The above wire harness is present on my 2002 530i5 speed manual, but it is not present on my 2001 525i Auto:
This is of interest because I am finishing a swap, with 530i/5 donor engine and transmission being put into the 525i/A Touring
Because I have swapped the 530i/5 engine with harness into the 525iA chassis, I currently have the Red/Blk wire running from the M54b30 engine harness but no connector in the DME box to connect it to, and I'm not sure what it's function is
Cheers,
Andrew