95 E36 M3 coolant level sensor wire color?

[SamGrant951]

Now that I reinstalled the OBC in my 95 M3 Im getting some warnings and want to clear them all up - the only wire I can find near the front which I haven't already identified is a black/blue wire? Can anyone confirm? (Hoping its the coolant level!)

Car is a 9/95 build - I looked at some wiring diagrams and found the circuit but didn't see the wire colors mentioned.

Thanks!
Sam

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[AJLM34A]

The 1995 wiring diagram shows Br/Ws;

http://wedophones.com/Manuals/BMW/19...g%20Manual.pdf

6581.2 is the wiring for the OBC


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[SamGrant951]

ah ok - thanks...the search continues. anyone know what the black/blue wire would be for?

[ScotcH]

Going from memory ... AC compressor sensing or something like that.

[SamGrant951]

Hmmm..car is a LTW and didnt have A/C from the factory so Id assume it wouldn't have A/C wiring but I will see if I can check that vs the wiring diagrams.

[AJLM34A]

anyone know what the black/blue wire would be for?

If you follow the wires, do they go into a factory unmodified harness?

Who installed the S54 in it?

[SamGrant951]

Yes looks that way, these two wires (ground and blue/black) come off the same wiring bundle as headlights/fog lights. Bimmerworld circa 2009.

[AJLM34A]

Alarm siren wire.
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[SamGrant951]

Thank you sir!