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W212 Estate Boot/Tailgate Issues

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by Johnjn2000, Sep 27, 2019.

  1. Johnjn2000

    Johnjn2000 New Member

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    Your Mercedes:
    E class Estate 2015 E212
    Hi all please be gentle with me as I am a newbie looking for some advice.

    I have had my E class estate from new and up until recently it has been trouble free. Over the past few months it has developed an intermittent fault with the automatic boot. When I open it, and this bit happens every time, I get a loud noise click, click, click, click as if the lock is struggling to open, and then it opens. I can live with that bit but the main issue comes when I try to close, it gets to the bottom of its travel and then pops back open again like it would if something was trapped in it. I can go through the opening and closing process 3 times before it closes correctly or I can be there for 30 mins, it is quite random in its severity. This I could also live with if I had a way of locking it manually but it appears that this isn't a thing?

    Took it to my local mechanic who is a trustworthy sole and he wouldn't touch it as he couldn't guarantee how long the fault finding would take and electrics were not his expertise. I phoned a local Merc specialist and they said they would take a look but with things like this the fault finding could take hours and I could easily see a £700 bill racking up.

    So I am now on a forum looking to see if anyone has experienced exactly this issue. Internet searching has identified that the locking mech can fail and it is 100 quidish for a new part. Loath to do that just yet as my issue doesn't sound the same as those who talked about this fix.

    Any ideas anyone? Thanks in advance
     
  2. OP
    Johnjn2000

    Johnjn2000 New Member

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  3. Gazwould

    Gazwould Senior Member

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    Your Mercedes:
    S204 OM651
    The iCarsoft MB V2.0 has a diagnostic section for the electric tailgate .

    You need fault codes .
     
  4. malcolm210

    malcolm210 Senior Member

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    Sounds like another pair of hinges sticking because they never get lubricated. Mine did just the same just after I bought it. The remedy was to soak the hinges in fully synthetic engine oil, you will need to do this a few times to be successful as the hinge pin is quite tight. If you do a search on this forum for sticking tailgate you’ll find more info. The design is quite agricultural certainly not up MBs usual standard, also make sure you oil the motor pushrod ball joint (looking from the back of the car it’s situated at the side of the left hinge)

    Good luck with it and do persevere with the oiling

    https://forums.mercedesclub.org.uk/...ass-tailgate-issue.172658/page-6#post-1734767
     
    Last edited: Sep 29, 2019
  5. Gazwould

    Gazwould Senior Member

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    Same arrangement for C Class too ?
     
  6. OP
    Johnjn2000

    Johnjn2000 New Member

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    E class Estate 2015 E212
    Thanks Malcom. I did see another post somewhere about lubricating but it didn't seem to be displaying the same characteristics of my fault. It's the chattering of the lock when i open and the lack of the lock engaging or even trying to engage that led me to think electrical rather than mechanical. I guess the mechanical elements working correct drive the success or failure of the electricla bits and vice versa. I will get myself some oil and give your suggestion a bash.
     
  7. malcolm210

    malcolm210 Senior Member

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    Yes do try oiling the hinges as you say the tailgate can stick at any point including when the electronics are trying to engage
     

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