Tachometer not working, oil change lights stays ON with ignition off.

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  • chris_rai
    Member
    • Sep 2009
    • 99

    #1

    Tachometer not working, oil change lights stays ON with ignition off.

    Hi there

    I got a problem with my cluster, rpm gauge don't work anymore, and the services lights stays ON even with ignition off. temperature gauge seems to work intermitently too !

    i'v heard about bad Si boards batteries, and i'v just checked them, one is 1.2v and the other is 0v.


    can this be related to the tachometer and temp gauge not working or they should work even without batteries ?
  • dnguyen1963
    R3VLimited
    • Nov 2011
    • 2648

    #2
    Change the batteries and you'll be happy again.

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    • jlevie
      R3V OG
      • Nov 2006
      • 13530

      #3
      Check for corrosion on the board from leaking batteries. If there is any corrosion, don't bother with replacing the batteries. Get a new board.
      The car makes it possible, but the driver makes it happen.
      Jim Levie, Huntsville, AL

      Comment

      • Gregs///M
        Forum Sponsor
        • Mar 2012
        • 2459

        #4
        0V would be a good indication of what to do.
        Owner - Bavarian Restoration
        BMW and European Electronics Repair and Restoration
        www.BavRest.com
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