Fog lights

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  • noid
    E30 Mastermind
    • Feb 2008
    • 1529

    #1

    Fog lights

    Got some fog lights off of a 325 at the junkyard. The ones that go under the diving board. The bulbs are still good. Iv never had fog lights till this point and im not sure if my car has ever had any. I plugged them in but they don't light up what so ever. Fuse 29,30 is there and the connectors look like they are ok. The button to the right of the light switch is what i assume controls the fogs, but even after replacing the switch with the one from the car that originally had the fogs it still didn't work. Is there a relay somewhere or something? Maybe the cars that didn't come with fogs had something different then the ones that did?
    Your resource to do-it-yourself and interesting bmw and e30 stuff: www.rtsauto.com

    Your resource to tools and tips: www.rtstools.com
  • morningsmiler
    Wrencher
    • Jun 2008
    • 230

    #2
    They will only light up when the low beams are on. I think the key has to be in teh run position, too
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    • Sam Cogley
      E30 Addict
      • Jun 2008
      • 521

      #3
      Check the fuse box, there is probably a relay that needs to be installed.

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      • noid
        E30 Mastermind
        • Feb 2008
        • 1529

        #4
        Cant find anything???? Would it make a difference if i did an ellipsoid conversion from sealed beams?
        Your resource to do-it-yourself and interesting bmw and e30 stuff: www.rtsauto.com

        Your resource to tools and tips: www.rtstools.com

        Comment

        • Sam Cogley
          E30 Addict
          • Jun 2008
          • 521

          #5
          Originally posted by noid
          Cant find anything???? Would it make a difference if i did an ellipsoid conversion from sealed beams?
          No.

          I don't know anything about possible fuse box differences between early and late models (if there are any), but my box has two places that relays aren't installed if you don't have fog lights. K9 on the upper left for the rear fog light, and K? on the lower right for the fronts. BMW played a trick and reversed two relay pins, so you have to use a BMW relay to make them work.

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