[Les Paul]

Originally Posted by marinabrian

service exchange (preferable in the case of an NNN500340 ECM) or a repair in the case of an NNN100720.

Right, whipped it out and... hmm... it's neither of those. I've got two labels on it:

The one nearest the connector 'choc block' with the Bosch & BMW logos is telling me it's a NNN 100 692 and underneath that I've got 7 785 541

The other smaller label at the opposite end has NNW101521 printed on it with the numerals 4149 immediately underneath it. Then there's a thick black line and below that is a bit of the chassis number SARRJZTHC and under that in large typeface I've got 3D263148.
Am I stretching it to think this one came out of a ZT?

That's going to mean a lot more to you than to me Brian.