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Thread: What are these wires for? 2003 E39 525iT

  1. #1
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    What are these wires for? 2003 E39 525iT

    Mom's E39 wagon has some loose wires behind the grille as seen in this pic, any ideas on what they are for?:
    IMG_2100.jpg
    I'm scratching my head trying to think about what doesn't work... horn works, fans work...

  2. #2
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    Quote Originally Posted by LysanderSpooner View Post
    Mom's E39 wagon has some loose wires behind the grille as seen in this pic, any ideas on what they are for?:
    IMG_2100.jpg
    I'm scratching my head trying to think about what doesn't work... horn works, fans work...
    Does your fog lights work

    Sent from my HTC 10 using Tapatalk

  3. #3
    JimLev's Avatar
    JimLev is offline Artifically Aspirated Moderator
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    Previous owner must have added them.
    The only wires I have in that location are the ones I added.

  4. #4
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    Yep, looks like a spade connector underneath the two cut wires. Maybe was power for a Valentine 1 forward looking sensor?
    Set the controls for the heart of the sun

  5. #5
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    Quote Originally Posted by srx788 View Post
    Does your fog lights work

    Sent from my HTC 10 using Tapatalk
    Yes they does.

    - - - Updated - - -

    Quote Originally Posted by JimLev View Post
    Previous owner must have added them.
    The only wires I have in that location are the ones I added.
    They are part of the original wiring harness.

    - - - Updated - - -

    Quote Originally Posted by BimmrMeUpSnotty View Post
    Yep, looks like a spade connector underneath the two cut wires. Maybe was power for a Valentine 1 forward looking sensor?
    Was that ever standard equipment? The wiring looks original.

  6. #6
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    Quote Originally Posted by LysanderSpooner View Post

    They are part of the original wiring harness.

    - - - Updated - - -


    Was that ever standard equipment? The wiring looks original.
    They are oem harness wires? Hmmm.... And no, they never had wiring for radar detectors, but my cars do.
    Set the controls for the heart of the sun

  7. #7
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    Very hard to tell where they come from in the picture. Does your Aux Fan work (i.e. the one seen in the picture) it should run any time the AC is on and it is warm outside (above 60F or so).

    If the fan does not run with the AC on watch it and have someone start the car it should turn on for a second or two to test it when the car starts.

    That is the only thing i can think of that would be close to that area. Not sure if they are actually on the other side of the fan though.
    2003 525iT Automatic, Topas Blue Exterior, Gray Leather Interior, Sports Suspension, Sports Seats, M 3 spoke Steering Wheel.
    2008 328xi E91 (wagon) Automatic, Barberatot Metallic Exterior, Terracotta Leather Interior.

  8. #8
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    PDC maybe?

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