ECU lable colours

Need technical Q/A then you're in the right place

Moderator: martauto

broadie
E30 Zone Regular
E30 Zone Regular
Posts: 560
Joined: Fri Mar 15, 2013 11:00 pm
Location: East Devon

Post Sun Apr 07, 2013 9:38 am

Whats with the different colour lables on ecu's I've seen yellow, green, red ,purple ,orange?
Can any one explain or give me a link please?
Thanks
FinalD
E30 Zone Camper
E30 Zone Camper
Posts: 1098
Joined: Wed Apr 25, 2012 11:00 pm
Location: Bristol

Post Sun Apr 07, 2013 10:04 am

You missed out grey. :D

As far as I'm aware it is just the model/version. I have two facelift 325i ECUs, about 1 year apart, one is red the other is grey and they are two different version numbers. One number claims it to be for an auto the other does not, both ECUs came from cars with manual boxes (from the factory).
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49360
Joined: Mon Jan 10, 2005 11:00 pm

Post Sun Apr 07, 2013 10:16 am

The only label colour I know of that has some significance is that of the 413 ECU used on the M50B25. Maroon label versions do not have the EWS immobiliser system, while the silver label version does.
broadie
E30 Zone Regular
E30 Zone Regular
Posts: 560
Joined: Fri Mar 15, 2013 11:00 pm
Location: East Devon

Post Sun Apr 07, 2013 12:03 pm

Thanks guys.
I now have an EWS question in the M42 section :mad: .