Can anyone tell me where the datecode is for these harnesses? I need to see if this particular one has been replaced.

What year? On the '94/'95 the label is near the ECU. On the later models I don't know.

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Gone to the dark side

- Jeff

model year 1995, is it on the hard plastic piece that actually attaches to the ECU?

On my cars, it is a tag that is inches from the connector, can be seen between the ECU and the inner-firewall.

__________________

Gone to the dark side

- Jeff

Thanks. It would be nice if MB maybe color-coded the replacement harnesses so anyone could just glance at it when buying a used E320 and know the answer to the million dollar question.

Not only did they not color code it I don't think they even date coded it, at least not with the production date.

A harness that has been replaced will have a "FD" dated code after 6/95. . That is a Fabrication date. If the harness has a "ZD" code , that is a Design code and is original.

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A Dalton

I did not know what the difference was between FD and ZD- thanks for that info

A.D., is that ZD/FD a sticker on the black clamp-down piece on the ECU or is it permanently etched/printed on that same clamp-down piece? I just bought a new harness at the dealer and this clamp-down piece has a white barcode sticker with a date on it which should fall off in about two-weeks...