Intermittent brake fluid light on cluster

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  • rich4rdee
    E30 Addict
    • Apr 2010
    • 595

    #1

    Intermittent brake fluid light on cluster

    Often when I'm braking the brake fluid lights flickers for a bit when I'm taking corners. I checked the level and it's in good shape, so I'm thinking it might be a faulty sensor? Is the body roll causing the fluid to swish around and think it's running dry? This only happens when i'm going around corners.

    Thanks for any tips!

    EDIT- Topping off the brake fluid was the fix. I simply filled it up near the top and my issue went away.
    Last edited by rich4rdee; 01-13-2015, 10:12 AM.
  • dnguyen1963
    R3VLimited
    • Nov 2011
    • 2648

    #2
    If the fluid is at the max fill line then it should not trigger the sensor even if you take a hard corner.

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    • ST1G
      R3V OG
      • Oct 2012
      • 6689

      #3
      Originally posted by rich4rdee
      Often when I'm braking the brake fluid lights flickers for a bit when I'm taking corners. I checked the level and it's in good shape, so I'm thinking it might be a faulty sensor? Is the body roll causing the fluid to swish around and think it's running dry? This only happens when i'm going around corners.

      Thanks for any tips!
      Good shape meaning....


      Mine was just a hair under full and it would do this. I added a little more and it went away.

      Comment

      • stonea
        R3VLimited
        • Jan 2012
        • 2892

        #4
        I had the same problem, it was about 1/2 way between min & max, once I filled it up to max the problem went away.
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        • Jaxx_
          E30 Mastermind
          • Dec 2009
          • 1880

          #5
          shit... my light doesn't come on until it's almost below min.
          '84 318i M10B18 147- Safari Beige
          NA: 93whp/90ftlbs, MS2E w/ LC, 2-Step
          Turbo: 221whp/214ftlbs, MS3x flex @ 17psi

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          • rich4rdee
            E30 Addict
            • Apr 2010
            • 595

            #6
            Thanks for all the replies guys! I've got some brake fluid at home I'm gonna try out soon and I"ll let you know the results.

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            • reelizmpro
              R3V OG
              • Dec 2003
              • 9465

              #7
              If you verified your level is at the max and you aren't losing fluid, then look into getting a new reservoir cap.
              "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

              85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
              88 M3 - LACHSSILBER/SCHWARZE
              89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
              91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

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              • rich4rdee
                E30 Addict
                • Apr 2010
                • 595

                #8
                Originally posted by stonea
                I had the same problem, it was about 1/2 way between min & max, once I filled it up to max the problem went away.
                This was the fix! Thanks a lot guys.

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