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Central Locking ML500 W163 2003

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by TechnoWhizz, Oct 8, 2016.

  1. TechnoWhizz

    TechnoWhizz Active Member

    Messages:
    27
    Likes Received:
    3
    Joined:
    Mar 18, 2016
    Location:
    Rugby
    Your Mercedes:
    ML500 W163 2003 Black LPG
    Hi Everyone.

    I have a recently developed fault which I hope you can help with.

    When trying to lock the ML, or when the ML tries to safety lock the doors when moving off, all the doors lock successfully except the drivers door. It seems to try and lock, then unlock, retry, unlock then stop - almost a "machine gun" sound.

    If I press the button down it is successful, or if I lock the door manually with the key it's successful.

    Is there a switch that needs a clean / replace - only a thought??

    Any ideas?

    Chris
     
  2. V6Matty

    V6Matty Senior Member

    Messages:
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    Joined:
    Aug 1, 2012
    Location:
    Newark, Notts
    Your Mercedes:
    S212/10/E350(His) W169/2005/A180 (Hers)
    Have a search on the forum for bouncing door locks, it's a common fault with an easy fix if your ok with tools, essentially it's a small spring in the door lock that's failed.
     
  3. Taffy7hfa

    Taffy7hfa Senior Member

    Messages:
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    347
    Joined:
    May 29, 2016
    Location:
    Oxford
    Your Mercedes:
    2004 ML350 Inspiration.2002 ML270 CDI Fully loaded.2019 Insignia SRI.2014 Peugeot 308 1.6 HDI.
    As V6Matty says, small spring broken in door locking mechanism...........You Tube " Mercedes machine gun door lock" it will give answers you want.
     
  4. Mr Filipov

    Mr Filipov Senior Member

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    Joined:
    Dec 31, 2015
    Location:
    Huntingdon
    Your Mercedes:
    2017 BMW 535d Gran Turismo
    My CLS was doing the same. If you dont mind taking apart the door to change the spring it will cost you a couple of quid. I got mine under my warranty so they did the whole lock mechanism for the cost of nothing on my end. Got told if you go for the whole lock its well into £100+
     
  5. OP
    TechnoWhizz

    TechnoWhizz Active Member

    Messages:
    27
    Likes Received:
    3
    Joined:
    Mar 18, 2016
    Location:
    Rugby
    Your Mercedes:
    ML500 W163 2003 Black LPG
    Thanks to all, but curiously (after I bought the springs) it seems to have resolved itself. At least I've got the springs if it returns!!
     

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