Trunk lock cylinder removal

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  • Nsquared97
    E30 Mastermind
    • Sep 2010
    • 1656

    #1

    Trunk lock cylinder removal

    I know there are a million and 1 threads on central locking, removing the lock cylinders, etc. but I cannot for the life of me find anything on the trunk lock. I removed the 2 screws and got the whole push button lock piece off the car, but how do I remove the cylinder itself from the piece it sits in? I am trying to take it apart and lube/rebuild the lock as it's basically frozen.

    Any help is appreciated, thanks.
  • Ceeker
    R3VLimited
    • Sep 2009
    • 2821

    #2
    you need "C" clip pliers to take the snap ring out first. Once you have that you can separate the button from the housing. then you have to get the chrome piece off which is a bit tricky without bending or damaging the shit out of it. Once the clip is out you can disassemble it.
    sigpic

    Comment

    • Nsquared97
      E30 Mastermind
      • Sep 2010
      • 1656

      #3
      Gotcha. After looking at/monkeying with it some more, that's what it looks like. Thanks!

      Comment

      • Nsquared97
        E30 Mastermind
        • Sep 2010
        • 1656

        #4
        Ended up having to get a set of pliers, harbor freight FTW. Anyhow, got the clip off, the little washer and spring out, and the button out. Now how is chrome 'button' piece supposed to com off the lock cylinder? Everything is so corroded I can't figure out how to pull it apart and don't want to break it.

        Comment

        • Ceeker
          R3VLimited
          • Sep 2009
          • 2821

          #5
          Originally posted by Ceeker
          you need "C" clip pliers to take the snap ring out first. Once you have that you can separate the button from the housing. then you have to get the chrome piece off which is a bit tricky without bending or damaging the shit out of it. Once the clip is out you can disassemble it.
          read this again. :)

          you can see there is a small dibit in the chrome near the bottom. this holds the chrome piece to the body of the key lock. welcome to micro management.
          sigpic

          Comment

          • dnguyen1963
            R3VLimited
            • Nov 2011
            • 2648

            #6
            It would seem an overnight soak in PB Blaster would take care of the rust before you attempt to disassemble the lock. After that, you can immerse the lock in WD-40 and use your key to move the lock mechanism back and forth.

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            • Nsquared97
              E30 Mastermind
              • Sep 2010
              • 1656

              #7
              Well got it apart, and figured I would do a little write-up on it for anyone in the position that I was when I started this thread.

              Comment

              • bubbajan21
                E30 Mastermind
                • Mar 2011
                • 1962

                #8
                Great and well-detailed write-up, Thanks!

                Comment

                • Nsquared97
                  E30 Mastermind
                  • Sep 2010
                  • 1656

                  #9
                  Thanks! Glad to be able to contribute something back to the community.

                  Comment

                  • kickinindian
                    R3VLimited
                    • Jan 2012
                    • 2327

                    #10
                    i just finished doing the trunk and door locks on my car last week i had to rekey all the locks to my ignition key the drivers side is a PITA

                    Comment

                    • honda.lioness
                      Noobie
                      • Oct 2017
                      • 11

                      #11
                      Does anyone know how many of the tiny springs and tiny ball bearings are installed on the lock assembly (after removing it from the trunk)?

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