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Vehicle E Class tailgate issue

Discussion in 'Mercedes Car Classifieds' started by goldy, Dec 19, 2018.

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  1. goldy

    goldy Senior Member

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    I Have a 2014 E Class estste with a power tailgate causing problems.

    Sometimes it operates fine. Sometimes it will open a few inches then stop and need a further push on fob or handle to go up.

    Other times it groans as it opens.

    Any ideas?
     
  2. malcolm210

    malcolm210 Senior Member

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    I had this and resolved it by oiling the hinges at the top, some obviously run tighter than others. If it won’t open run some light oil into the hinges from the top of the tailgate and leave for a day, I oil the hinges every six months or so and no further problems
     
  3. OP
    goldy

    goldy Senior Member

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    Fantastic. Thank you for your help.

    It's been in to the dealer several times but they keep replacing parts which don't solve it.

    Simple may be the answer!

    Any oil type?
     
  4. Wighty

    Wighty Senior Member

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    I would try a 3 in 1 oil first , a thin oil might get into the hinges easier and quicker (not WD40)
     
  5. OP
    goldy

    goldy Senior Member

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    Thank you. I did spray wd40 on it which made it operate fine for a few hours.

    I'll get 3 in 1.
     
  6. malcolm210

    malcolm210 Senior Member

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    Re the dealer, yes they would wouldn’t they, the hinges are pretty much open to the environment (bad design) so should be oiled fairly regularly at least a couple of times a year. I use 10/30 engine oil anything else doesn’t last. They may take a bit of freeing as they are obviously very dry so persevere, it’s also worth putting a bit of oil on the end of the motor shaft ball joint where it connects to the tailgate
     
  7. LostKiwi

    LostKiwi Senior Member

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    You can also use ATF fluid.
    ATF penetrates well and has excellent lubrication properties. If you really want it to penetrate mix it 50:50 with acetone but it will then reduce the lubrication. That mix is one of the best penetrating oils out there.
     
  8. OP
    goldy

    goldy Senior Member

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    Thanks again. I'll give it a go. Dealer replaced every part I think but still same issue. Hinges have been changed so I'm thinking they haven't lubricated them. Nothing surprises me with them!!
     
  9. OP
    goldy

    goldy Senior Member

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    Thank you. Appreciate the advice.
    I am hopeless but seems I qualify as a dealer technician on that basis!!
     
  10. Wighty

    Wighty Senior Member

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    Very funny buddy :D
     
  11. OP
    goldy

    goldy Senior Member

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    No disrespect intended to any techs outside of the dealership I've used
     
  12. Frontstep

    Frontstep Senior Member

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    Don't use these oil mixes if its exposed to the elements they will attract muck and make it worse, use a dry lubricant.
     
  13. OP
    goldy

    goldy Senior Member

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    Sorry for being thick but what's a dry lubricant?
     
  14. Blobcat

    Blobcat Moderator

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    A PTFE spray, I’d also class silicone spray. Powdered graphite is excellent for locks but criminally expensive.

    I’d use spray silicone grease on your hinges. A MB dealer I used to use supplied a free small spray can of the stuff at every service. I’ve still got quite a few in the garage.
     
  15. Frontstep

    Frontstep Senior Member

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  16. Blobcat

    Blobcat Moderator

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  17. OP
    goldy

    goldy Senior Member

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    T
    Thank you.

    It's difficult to get at them as far as I can see. May need to run to a repairer.
     
  18. malcolm210

    malcolm210 Senior Member

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    They are difficult to get to so better to use something like engine oil once you have freed them off, a good squirt with an old fashioned oil can can get the oil where it’s required.
     
  19. OP
    goldy

    goldy Senior Member

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    Where should I be aiming?

    Sprayed some white grease where I could see and 3 in 1 oil squirted on top of the hinge (I think). Also oiled the ball joint.

    Been ok today aside from one slight groan which didn't stop it opening.

    Thanks again for your help.
     
  20. malcolm210

    malcolm210 Senior Member

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    It will gradually free as the oil works its way into the hinge, I use a copious amount and clean off as necessary, works with mine for around six months and then I repeat the process
     

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