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E30 Speedometer Repairs - Failure Modes

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    #16
    The speed signal from the differential goes to the cluster, then to the OBC and cruise control.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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      #17
      Originally posted by jlevie View Post
      The speed signal from the differential goes to the cluster, then to the OBC and cruise control.
      and DME.
      Build thread

      Bimmerlabs

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        #18
        Capacitor failure. It is a common issue that occurs on the VDO speedometer. On the board of the speedometer head lives a 220uF electrolytic capacitor.
        I just replaced the bad gears in my VDO unit and still no odometer movement. I did see the discoloration on the pcb that 03IRM3 mentioned so I wanted to try changing the capacitor. Does anyone know what type of cap I need? I'm handy with a soldering iron but don't know crap about the differences in components.

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          #19
          I also get much satisfaction from figuring things out, but it was really easy to send my cluster to Bavarian Restoration. bavrest.com
          1992 325i Cabrio
          1988 320i Touring
          2000 M5
          1977 530i
          2015 328i - Euro Delivery/Performance Center Delivery
          BMWCCA
          E30CCA

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