525 harness

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  • R&D man
    Member
    • Mar 2010
    • 79

    #1

    525 harness

    I had to purchase a 525 harness with automatic................Is there anyting I should whatch for on this harness?will It work for my m50 vanos engine?
  • Schwarz325
    E30 Addict
    • Aug 2009
    • 487

    #2
    Is it a original vanos harness? and if your e30 is manual you'll need to convert it to a manual harness

    Comment

    • R&D man
      Member
      • Mar 2010
      • 79

      #3
      harness

      How do I know if it a automatic I only have one plug for the ecu?

      Comment

      • Kingb
        E30 Modder
        • Aug 2008
        • 928

        #4
        Originally posted by Schwarz325
        Is it a original vanos harness? and if your e30 is manual you'll need to convert it to a manual harness
        I have heard this a lot but also read from people that they didn't have the extra connectors for the auto. I pulled the auto tranny off my m50 and it didn't have any extra connectors or wires. My guess is that it will depend on which car is the donor and which auto was in it
        Originally posted by Nicademus
        My car beats off to that car. :bow:

        Comment

        • xwill112x
          Θέλησα έναν τίτλο συνήθειας, απορροφώ για να είμ&#
          • Jan 2009
          • 4236

          #5
          91 318<--nvm50e34auto

          i just cut all the wires to the auto. i thinkk i should be fine?
          sigpic

          Comment

          • g22
            Wrencher
            • Nov 2006
            • 274

            #6
            I used an auto 525 harness. I had no problems.

            Comment

            • matt
              No R3VLimiter
              • Oct 2003
              • 3731

              #7
              Originally posted by g22
              I used an auto 525 harness. I had no problems.
              Your ECU would fit where it is supposed to if you had an e36 harness. Otherwise it's fine.

              Comment

              • 318isbmw
                Moderator
                • Nov 2005
                • 2841

                #8
                Honestly i didn't even cut out the auto parts of the harness. I'm running an e36 harness and like matt said, the ecu fits just like the old one.

                Comment

                • OldsCool
                  Advanced Member
                  • Jan 2009
                  • 157

                  #9
                  Originally posted by g22
                  I used an auto 525 harness. I had no problems.
                  same here. but my engine was an NV M50. used a auto harness and had no problems.

                  Comment

                  • genocide98
                    Advanced Member
                    • Oct 2009
                    • 106

                    #10
                    The automatic portions of the harness are optional if you're using a manual transmission. If you cut them off make sure you seal the ends up with tape and heat shrink... but I'd just leave them on unless you're anal about cleanliness and weight.

                    I know that my e30 had a neutral start switch I had to jump when I swapped my 5spd, but I'm not sure if thats the case with an e34/e36 harness, or if you would even have that portion of the harness from the car.

                    Comment

                    • bmw320e21
                      Member
                      • Jan 2005
                      • 67

                      #11
                      On the e34, the transmission harness is not apart of the engine harness. Its two separate harnesses. So you wouldn't have to remove anything.


                      Adam

                      Comment

                      • BonnschE30
                        Wrencher
                        • Jun 2008
                        • 295

                        #12
                        Originally posted by matt
                        Your ECU would fit where it is supposed to if you had an e36 harness. Otherwise it's fine.
                        Any creative solutions to fixing this problem? I hate non-OEM fitment of anything!!!!

                        Comment

                        • g22
                          Wrencher
                          • Nov 2006
                          • 274

                          #13
                          I used the 318 ecu bracket turned sideways and two of the four screws fit. Once I get time I'm going to weld two small strips of metal to reach the other two screws. Two holds it fine though...

                          Comment

                          • BonnschE30
                            Wrencher
                            • Jun 2008
                            • 295

                            #14
                            e36 or e30 318???

                            Comment

                            • g22
                              Wrencher
                              • Nov 2006
                              • 274

                              #15
                              I think it was an e30

                              Comment

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