M50 ECU

Post Mon Jul 16, 2007 11:58 pm

The ECU for the M50B25 vanos is the 413, but comes in a pre EWS version and an EWS version.
I think they are distinguished from each other by the colour of the label.
IIRC, maroon and silver? Anyone know for sure which is which?

Post Tue Jul 17, 2007 12:02 am

Looking at it another way - could you not use the chassis number on the ECU label to reference with BMW doing a spec enquiry?

Post Tue Jul 17, 2007 12:02 am

Not sure on that, thought the Brown and Green stickers were for auto or manual

Post Tue Jul 17, 2007 12:05 am

old_skool_2002 wrote:Looking at it another way - could you not use the chassis number on the ECU label to reference with BMW doing a spec enquiry?

Or give me the last 7 digits of the VIN number marked on the ECU, and I can check in my ETK.

I've red about Maroon and Silver labels on American forums, but not sure if it applies over here.

Ian.

Post Tue Jul 17, 2007 12:20 am

ECU doesn't exist yet! Not in my ownership, anyway.
I've got a M50B25 Tu with no ECU taking up space in the workshop, and it's time it found its way into a touring, so I need to think about sourcing an ECU.

Post Tue Jul 17, 2007 12:28 am

i got an ecu from a 525i 1993 auto for my 24v it ended in 413 and the sticker was brown i think.it works anyway.

Post Tue Jul 17, 2007 10:38 am

Does anyone have a 413 ECU for sale? Someone contacted my e-bay address and needs one urgently - I could put you in touch.
Cheers,

Post Tue Jul 17, 2007 9:25 pm

Think I have a couple,
is thats the seimens one ?
im sure I have a few different types.

Post Tue Jul 17, 2007 9:32 pm

Hi Jimmy,
You have PM!
Cheers,

Post Tue Jul 17, 2007 9:44 pm

jimmy wrote:Think I have a couple,
is thats the seimens one ?
im sure I have a few different types.

413 is a Bosch type. Siemens type superseded the 413 shortly after the introduction of EWS.

Post Tue Jul 17, 2007 10:15 pm

Hi Brian,
Im sure I have a non ews siemens type as a guy fitted a non vanos 2.0 engine to a vanos 2.5 car and I had to supply the loom and ecu from a non vanos 2.0 for it to work, his key was a non chip key?? strange.