W140/M104 Any idea what this wire is for?

[richard300]

So, recently purchased a 1996 S280. As i cant find a definitive answer on if 1996 onward or 1997 onward is 'safe' with respect to updated wiring harness, i have been inspecting my wiring harness/loom.

I have to say, that my car was either manufactured with the later harness or has had a new harness - As there is no degradation to any of the wires.

However, during my inspection i was looking at the section of loom and connectors around the fuel injectors, and i noticed this random wire/connection along with the brown wire - Neither connected to anything??

The connector has an MB part number of 012 545 40 28

[Giles]

Brown wires are generally ground.

Giles

[AMGC36]

Hi
The one in your hand my be cam advance in the front of the head left side

[John Green]

What are the colours of the two wires going tot he two pin plug?

[richard300]

Thanks for the replies... sadly, before i saw them, i had wrapped them up with insulting tape and cable tied them back to the rest of the loom.

John, i cant remember what colour the wire were - but there were 3 wires going into the plug.

Someone on MBUK forum told me that they were for the secondary air pump (which my car is not fitted with). I have looked all over and cant see anywhere they should be attached to.