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    Central locking, except trunk?

    I've had a few convertibles but never an E30. My general habit is to put any valuables in the trunk and leave the doors unlocked. I've read up on the (apparently) fully functional central locking on my new-to-me 1990 325iC. I have not found a way to lock the trunk but not lock the doors, or unlock the doors without unlocking the trunk. I don't have a keyfob. Is the central locking system able to do this but I haven't figured it out yet? If not, can I modify the microswitch in the trunk so the trunk operates independently?

    Any help is appreciated. Thanks.
    1990 325i Convertible - Triple Black LSD 73K

    #2
    Not unless you unplug the trunk actuator. That would make it independent.
    "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

    85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
    88 M3 - LACHSSILBER/SCHWARZE
    89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
    91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

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      #3
      I think I would be OK with that. It sounds easily reversible and better than clipping wires or removing stuff. Would it be best to unplug the electrical connector side or the physical pin that connects the plunger to the lock?
      1990 325i Convertible - Triple Black LSD 73K

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        #4
        Unplug the connector...it's easily accessible.
        "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

        85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
        88 M3 - LACHSSILBER/SCHWARZE
        89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
        91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

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          #5
          Doesn't the trunk lock have a valet position that allows you to lock it independent of the doors ?
          Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

          https://www.r3vlimited.com/board/sho...86#post4944786
          Alice the Time Capsule
          http://www.r3vlimited.com/board/showthread.php?t=360504
          87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

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            #6
            I thought so too. I know I've double locked the trunk before and it takes me 5 minutes of finagling before I get everything properly set again to use my keyless entry.

            My e36 too.

            Don't you just lock it in the other direction?
            AWD > RWD

            Comment


              #7
              Originally posted by jeffnhiscars View Post
              Doesn't the trunk lock have a valet position that allows you to lock it independent of the doors ?
              Yes.
              When the trunk keyhole/slit is in the vertical direction, the trunk is locked irrespective of the doors.
              When the keyhole/slit is in the horizontal position, then the trunk lock functions exactly as the doors. i.e When doors are locked then the trunk is locked. When doors are unlocked then the trunk is unlocked.
              1990 325i
              2004 330i Individual 6-speed
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                #8
                Originally posted by jeffnhiscars View Post
                Doesn't the trunk lock have a valet position that allows you to lock it independent of the doors ?
                You're right it does. It's been too long since I've used keys in the trunk.
                "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

                85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
                88 M3 - LACHSSILBER/SCHWARZE
                89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
                91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

                Comment


                  #9
                  Thanks for the help. I removed the plunger pin instead. The electrical connector was backed against some sheet metal. The solenoid won't get frozen in position this way too.

                  I tested the valet setting and it doesn't quite make it independent. It makes it so the trunk doesn't unlock with the doors, but if you lock the trunk it locks the doors. Minor difference, but it is a preference thing. Otherwise when I lock the laptop in the trunk with the top down (common), I've got to unlock the car door or do the reach-around inside the car to open the drivers door.

                  I'll run it this way for a month and see how much of a PITA it is. Thanks again.
                  1990 325i Convertible - Triple Black LSD 73K

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