Gauges not working (Not SI board)

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  • SamE30e
    R3V Elite
    • Sep 2007
    • 4319

    #1

    Gauges not working (Not SI board)

    Alright,

    I have a weird problem, when I turn my car on, it starts, the coolant and fuel gauges don't work and the tach does for about 5 seconds then goes to 0. THEN the blower motor and AUX fan don't work either. Only thing that works is the speedo.


    Anyone got any ideas as to what it is, I tried tapping the relays and banging the dash.. didn't work

    Sam.

    P.S This is in my M50 car.
    1985 325e 2.8 Turbo VEMS
  • golde30
    R3V OG
    • Nov 2003
    • 11464

    #2
    fuse #10.

    i was having the same problem on my s50 car. it turns out my reverse lights were shorting #10, which also is the fuse for the instr cluster and the aux fan. i ended up unplugging my reverse switch under the shift boot, didnt pop another fuse. still havent hooked back up my reverse switch either though...
    IG: @Baye30

    FRONT VALENCE IS ZENDER!!! STOP FILLING MY PM BOX PPL!!!

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    • SamE30e
      R3V Elite
      • Sep 2007
      • 4319

      #3
      Fixed!

      Awesome, thanks..

      Now I need to find the short, it's probably my reverse switch also
      1985 325e 2.8 Turbo VEMS

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      • 500ke30
        Advanced Member
        • Oct 2004
        • 129

        #4
        I had the same problem on my swapped car. Fuse #10 was blown. I found this out after replacing the si board batteries.
        Count down to 1,000,000 miles: 490,649 to go

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