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'03 ML500 tailgate won't shut

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Old 09-19-2013, 03:53 PM
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2003 ML 500
'03 ML500 tailgate won't shut

My tailgate won't close. Lock is stuck in locked positon. Maybe someone out there has experienced this problem and repaired. Thanks
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Old 09-19-2013, 08:24 PM
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1990 190E 2.6, ... 1998 ML320, 2005 ML500SE
Do you mean the tailgate is open but the latch is in the closed position?

If so, I don't think the latch mechanism will release on it's own if you simply pull on the handle. Try pulling lightly on the latch mechanism while pulling on the handle.
Mike

Last edited by Mike's ML; 09-19-2013 at 08:26 PM.
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Old 09-19-2013, 09:08 PM
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2003 ML 500
tail gate

Mike... yes, tailgate open, accuator locked. I was able to get accuator in open position. However, I know if I close the gate I won't get it open. No activity at that lock when door locks open / closed. Think accuator took a dumb. Now I need to find one. Thanks,
Also replaced relay..no luck.
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Old 09-20-2013, 08:01 AM
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If it's the actuator, it is part of the door handle (#35). and vin# is required for the correct one.
Attached Thumbnails '03 ML500 tailgate won't shut-2013-09-20_065949.jpg  
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Old 09-20-2013, 04:16 PM
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2003 ML 500
tailgate lock actuator

Humm...everything I look at on line shows a picture of #5 (in the diagram) when I research "Tailgate Lock Actuator". OE # 1637400235.
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Old 09-20-2013, 04:36 PM
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2003 ML 500
tailgate

Think what I need to replace is..... Hatch door lock actuator bottom of rear tailgate lift gate locking solenoid selenoid latch.
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Old 09-20-2013, 07:18 PM
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The actuator cannot be bought separately and is part of the door handle, not the locking mechanism.
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Old 09-21-2013, 07:12 AM
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2003 ML 500
tailgate

Thank you for response. You state vin# required for actuator to assure correct part. So, for example..... I go to Rock auto, enter search for tailgate actuator... '03 ML500... one part comes up for my make/model & states "alternate/OEM # 77114385. How do I know this is correct part, look for # on part removed? How many options are there for this part?

Thanks again,
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Old 09-21-2013, 08:31 AM
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I cannot know how RockAuto works and if they have the correct part number.

In post #4, I supplied you with 6 different part #'s for handles and they are vin specific from M/B. If you do not want to purchase it from the dealer, how can I say if rockAuto has the correct part.
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Old 09-21-2013, 03:37 PM
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2003 ML 500
actuator

Thank you...
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Old 09-23-2013, 04:50 AM
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It may be possible to repair your broken actuator, if your problem is the same as in this thread --> hatch-door-actuator-plastic-stuff-warning.html
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Old 10-05-2013, 06:15 PM
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A few years ago I had the same problem. If I remember correctly I fixed it by pressing the buttons on the electronic key while holding the latch open and moving the door up and down. Eventually it will release.
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Old 10-06-2013, 09:45 AM
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Thanks.... but I'm way past that point now. Just waiting for part to arrive. Confident a new lock assembly will solve the problem.
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Old 10-09-2013, 10:25 AM
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Installed tailgate lock assembly and problem solved. A clue that it was a lock assembly issue all along.... the rear cargo lamp, set in the auto position, would not shut off when tailgate was closed. I shorted out the lock assembly and lamp went out.
Wish I had checked that from the get go.
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