BMW Farb/colour codes: Fast gelöst / nearly solved

Hi / Hallo,

we recently ran into a discussion about colour codes on BMW's huge variety of MAP sensors and ECUs here

now you BMW riders could help me sort this out. Id you have a red, blue or green colour dot on your MAP sensor or ECU: Can you find a mark which fits to the month of make? On rivets, it is normally stamped into one of them. Sometimes it is also a label. FD no.s are 1 letter for year of make followed by 2 for month of make.

Ihr BMW Fahrer, könnte Ihr mir helfen, das Rätsel bis zu Ende zu lösen: Wenn Ihr einen mit blau, rot oder grün markierten Saugrohrdruckfühler oder Steuergerät habt, könnt Ihr dann das Fertigungsdatum herausfinden? Bei Nieten ist die Zahl oft auf denen eingestanzt. Ansonsten könnte man die vielleicht sonst irgendwo auf dem Gehäuse (auch als Aufkleber) finden. Die Zahl ist 3-stellig und besteht aus einer Ziffer fürs Jahr sowie zwei für die Woche der Herstellung.

I'd ürefer answers lik, below are just samples: Ich würde mir Antworten erhoffen wie die Beispiel unten:

Blue ECU/Steuergerät: FD 012
Green MAP sensor/Saugrohrdruckfühler: FD 752

Thanks for your help, danke für die Hilfe!

Hello Volker,

Here you have info about my 2 ECU's.
Both 0 280 001 007
Both have a mark "RT" inside a circle and a "331" mark. Both are marked engraved on the metal.
ECU 1 - original from my Bmw 3.0Si from 5/74 - red mark
ECU 2 - reserve one - Bmw E3 ou E9 - silver mark

My "good" MAP is a Vw MAP after all... 0 280 100 008 - blue mark

Hi Antonio,

that confuses me! First you seem to cupport my thesis that red ECUs start with 132 by having a red marked 331 . Then you have a second one with a silver mark. Silver marks should not exist according to all sources that Norbert and you have shown.

And a blue marked VW MAP sensor was surely not meant to fit a red BMW ECU and not even a blue one.

Hi,
looked at the photos.
The blue marking on the VW ...049 sensor seems to be painted on with enamel.
I mean, its's not reliable at all. Original markings are stickers, as far I know.

There exist 6 different ECUs for the Opel Admiral / Diplomat B / Commodore B (2,
0 280 001 001 (rich) (without CO- potentiometer and air-temp-sensor)
0 280 001 001 (lean) (markings on my former posting)
0 280 001 005
0 280 001 010 (red plate), with air-temp-sensor, without cut-off, 5-wired throttle switch sensor from here on, 1971
0 280 001 022
0 280 001 021 (noticed in Bosch documents, never saw this one)

One more for Commodore A (2,5)
0 280 001 003

Regards
Norbert

Hi Norbert,

having different numbers on the same car is no problem, as you can easily differentiate. But BMW has up to 5 versions, all with same number!

And you are right that colour coding on BMW is via sticker. Here an example of a green one.

Hallo!

It's really confusing.
But the red marked ECU for a 74 car it's correct, yes?

The blue marking on the VW MAP it's not original for sure.
Why this MAP works and makes my Bmw 3.0si fast like hell... I don't know...

I must look for my other MAPs and try to find a red marked one (wich should have been the original one).

Regards
Mota