ECU identification.

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  • Olsonator
    Noobie
    • Apr 2014
    • 20

    #1

    ECU identification.

    Came with my 1987 325es, but not sure if it's the b27 ecu or not. Having hard time figuring it out. Thanks for help in advance!
    Attached Files
    What we do in life.. Echoes in Eternity.
  • Andy.B
    E30 Mastermind
    • Sep 2011
    • 1650

    #2
    Its a '525' dme, which is identical/interchangeable with the 173 dme. I had the same thing in one of my 325's, and was confused as well. Apparently it had come from a junkyard, as someone had written in sharpie '525i' on it. It took me a while to notice the '525' above the barcode, as searching for 527 didn't turn up much.

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    • Olsonator
      Noobie
      • Apr 2014
      • 20

      #3
      I appreciate the help. I noticed the 525, but I didn't think that it would actually be from the 525. Looks like I'll be searching for the b25 engine then.
      What we do in life.. Echoes in Eternity.

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      • jlevie
        R3V OG
        • Nov 2006
        • 13530

        #4
        That is a 525 DME, which was used on late production M20B25 engines in an E30 or in an early E34.
        The car makes it possible, but the driver makes it happen.
        Jim Levie, Huntsville, AL

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        • zambizzi
          Member
          • Mar 2014
          • 41

          #5
          Dude if you want to sell it I can and will buy it from you if it's not too much

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