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
ECU lable colours
Moderator: martauto
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FinalD
- E30 Zone Camper
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- Location: Bristol
You missed out grey. 
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).
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).
1988 325i Cabriolet - Gone.
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Brianmoooore
- E30 Zone Team Member
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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.
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broadie
- E30 Zone Regular
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Thanks guys.
I now have an EWS question in the M42 section
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I now have an EWS question in the M42 section
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