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Door mechanism replacement advice needed

Discussion in '360/430' started by Djack005, Oct 18, 2025 at 9:35 AM.

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  1. Djack005

    Djack005 Karting
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    Dave Jackson
    #1 Djack005, Oct 18, 2025 at 9:35 AM
    Hi all.

    I just replaced my driver's side door mechanism in my 2003 360 for the jammed cable issue. I used a new mechanism from Eurospares and the installation went fine. The mechanism seems to be working, however it won't stay locked. When I hit the lock button with the key fob I can hear it lock and then immediately unlock. I've checked all the electrical connections, everything seems to be plugged in. I even disconnected the mechanical connection to the interior lock lever as well as exterior lock cylinder. Even with everything disconnected, the key fob remote just triggers it to lock and then immediately unlock.

    Any ideas what would cause this?
     
  2. Qavion

    Qavion F1 World Champ
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    Ian Riddell
    #2 Qavion, Oct 18, 2025 at 3:05 PM
    With the door latched closed, does the door open indication extinguish? (key on of course)
     
  3. vrsurgeon

    vrsurgeon F1 World Champ
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    #3 vrsurgeon, Oct 19, 2025 at 7:29 PM
    the tightness of the cable under the door arm rest, open it and loose it up. too tight. car cant lock it as too tight..
     
  4. mike32

    mike32 F1 Veteran

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    #4 mike32, Oct 20, 2025 at 4:13 AM
    Assuming similar to a 430. Have the door open and see what the lock does,
     
  5. priericky128

    priericky128 Formula Junior
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    #5 priericky128, Oct 20, 2025 at 6:29 AM
    I had this same issue on my car after replacing the mechanism. It’s been a few years but I remember adjusting it with the threaded stick that goes into the lock switch in the armrest. If you back that off or tighten it, that fixes it iirc. Some trial and error needed.
     
  6. Qavion

    Qavion F1 World Champ
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    #6 Qavion, Oct 20, 2025 at 7:04 AM
    @vrsurgeon & @priericky128 Note that the original poster said he isolated the mechanical linkages, so I'm guessing adjustments are not the issue.
     
  7. Pete Schweaty

    Pete Schweaty Formula Junior

    May 21, 2014
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    #7 Pete Schweaty, Oct 20, 2025 at 9:30 AM
    That has happened to me in my f430 a couple of times. It has been a misaligned microswitch both times. The microswitch is never pushed back to the closed position giving the car the belief that a door may be open or being attempted to be opened.
     

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