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ML 320CDI W164 Central Locking Issue: Rear Door Not Closing - Seeking Experiences

r118 10173 7
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  • #1 16900680
    r118
    Level 2  
    Posts: 4
    Rate: 3
    Hello - I was looking on the forum but no one described this situation or I did not find it - I have a problem with the central locking in ML 320CDI in 164 I don't only close the rear door (fuel flap and the flap closes) the button on the door does not close the rear door , automatic closing after moving, also does not close the rear door - someone had something similar, please advice what to do with it?
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  • #2 16900728
    Ringo24
    Level 23  
    Posts: 322
    Help: 76
    Rate: 157
    Hello
    Check the Rear Sam on the right side in the trunk.
    Attachments:
    • ML 320CDI W164 Central Locking Issue: Rear Door Not Closing - Seeking Experiences rear sam.jpg (114.85 KB) You must be logged in to download this attachment.
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  • #3 16900737
    r118
    Level 2  
    Posts: 4
    Rate: 3
    how do i check?
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  • #4 16900790
    Ringo24
    Level 23  
    Posts: 322
    Help: 76
    Rate: 157
    very often water comes inside
  • #5 16900843
    r118
    Level 2  
    Posts: 4
    Rate: 3
    It looks like a friend that everything is ok - very good - but now, when I pressed the buttons in the door, one door on the back of the remote control opened, the other one did not - and in those that have opened you can hear as if the actuator wanted to work in the other silence and they do not react
    Added after 14 [minutes]:
    I see a friend that you are from Wieliczka, maybe I will be able to come to you because I also have a problem with turning on the parking heater from the remote control and I would need to update the navigations
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  • Weak 12.2 V supply may not drive lock under load

    #6 17234993
    zapka79
    Level 11  
    Posts: 8
    Rate: 5
    Hello
    I will refresh the topic, I have a similar problem.
    I undressed the SAM module on the back is very elegant,
    I checked with the SD tester and there is voltage on closing and opening, it turns out that the lock has fallen, but if I give the voltage directly to the contacts in the lock, it closes and opens ... and now I am asking for help because I do not know where to look ...
    is it possible that the voltage which is 12.2 volts during the load does not have the strength to move the lock?
  • #7 17235025
    r118
    Level 2  
    Posts: 4
    Rate: 3
    I had to change the locks and as far as I know it is a fairly common affliction of all mercs, if you can, you can buy on Allegro regenerated for about 250 or stimulants but it's a waste of money for uncertain plus replacement
  • #8 17237166
    zapka79
    Level 11  
    Posts: 8
    Rate: 5
    Today I connected this lock on the back to the front door because it is the same cube and it works .....
    hands are falling, theoretically I should replace the driver now, but according to SD everything is ok, the voltage comes out on the ankle,
    anyone has an idea ??
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Topic summary

LABEL_AI_GENERATED
The discussion revolves around a central locking issue in a Mercedes-Benz ML 320CDI W164, specifically concerning the rear door that fails to close. Users suggest checking the Rear SAM module located in the trunk, as water ingress is a common problem. One user reports that the lock functions when voltage is applied directly, indicating a potential issue with the lock mechanism itself. Another user mentions that replacing the locks is a common solution for this issue, and they have successfully tested the lock by connecting it to a different door. The conversation highlights the need for further investigation into the lock's electrical supply and possible replacement of the lock actuator.
AI summary based on the discussion. May contain errors.
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