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Any Advice : Transmission Service 2012 W204

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by mickfit6, May 5, 2020.

  1. mickfit6

    mickfit6 Active Member

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    Your Mercedes:
    2012 C200 Sport Diesel
    Hi Guys
    As some of you know, I've recently purchased my first Mercedes a few months back and so far I love the ****** thing......I must stress that I'm not a mechanic by no stretch of the imagination, but in some cases i would have a general idea(hope that makes sense).
    I believe these types of forums(Of any manufacture) carry a wealth of knowledge and therefore priceless to a guy like me. That being said, I'm looking to you guys for some advice on my next task
    As soon as I purchased, I did the norm and serviced it changing all the filters etc. and the cars running great. However, I've done a little research regarding the dreaded transmission service and i believe it should be done every 40000 or 3yrs, I'm hoping i understood this correctly ??? I bought my car with 87000 with full history but nowhere on the history does it mention the transmission service ???
    So needless to say I'm a little worried now (infact panicking) !!!!!!!!
    I've managed to source the service kit (should arrive on Thur/Fri) and gonna try and attempt this at the weekend.....

    Any comforting words of advice on what to expect ???

    Thx in advance guys !!!
     
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  2. V6Matty

    V6Matty Senior Member

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    Just take your time and make sure you get thinks warm before starting,
     
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  3. Gazwould

    Gazwould Senior Member

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    Your Mercedes:
    S204 OM651
    ATF 236.15 blue fluid for 7G+ interval is
    5 years / 77,500 .
     
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  4. OP
    mickfit6

    mickfit6 Active Member

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    Thank you guys !!!!

    Gazwould.....the guys suppling the service kit did mention exactly what you have just said...but I wasn't sure.....its very comforting to know they seem to be right !!!!
    The again mate
     
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  5. Wighty

    Wighty Senior Member

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    W211/E320cdi/2009 and CLK200k 2009
    MB have a service search facility which will tell you what’s due and when
     
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  6. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    This is the correct interval for your car! :)
     
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  7. OP
    mickfit6

    mickfit6 Active Member

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    How can I access that mate ??
     
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  8. garethbevan59

    garethbevan59 Active Member

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    Sorry to hi jack the thread but can anyone advise transmission service interval for CLS 250cdi 2012 7g box tia

    Sent from my Pixel 3 using Tapatalk
     
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  9. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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  10. Wighty

    Wighty Senior Member

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  11. OP
    mickfit6

    mickfit6 Active Member

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    Appreciate taking the time to look it up.....???
    Thx mate
     
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  12. Wighty

    Wighty Senior Member

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    It's lockdown buddy , time has ceased all meaning :D
     
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  13. OP
    mickfit6

    mickfit6 Active Member

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    Hi Guys
    Just a quick update...... Got the service kit today and needless to say got stuck in...lol
    The journey to collect the kit and back was able to get tyranny to operating temp, as suggested by V6Matty. To be honest I throughly enjoyed it......was annoyed bout an hour ago that I didn't do a rough step by step on my experience, but maybe you guys already know......

    However I did come across as a small issue....hoping for some advice on this from you guys....

    Once service completed, I was at the stage of going thru the gears etc and then waiting for the recommended 45 C topping up as required....when I noticed a small leak from the pump which i had previously removed to access the torque converter.........

    So its either the seals or maybe it just hasn't seat properly........

    My question is...once the tyranny cools down(as in overnight) will i be able to remove the pump again, without loosing any oil or do I have to go thru the whole process again ????

    P.S. was really enjoying it too until that feckn point !!!!

    Thx guys
     
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  14. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    You won't lose all the oil, but you will lose some. You should replace the rubber bungs that join the pump to the gearbox, whenever you have it off.
     
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  15. OP
    mickfit6

    mickfit6 Active Member

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    Thought I may lose something....was really looking a second opinion .....actually hoping that once the oil cooled down, I'd have a fighting chance of getting away with it.....Yeah, ill have to order more oil now then ??? Only hay bout a ltr or so left....
    Thx mate for the advice !!!
     
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  16. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    I doubt you will lose more than a liter so you should be OK!
     
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  17. OP
    mickfit6

    mickfit6 Active Member

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    I'll have to wait on the o rings anyway...so I'll probably order another ltr, just incase...id rather be looking at it than looking for it... but appreciate the reply !!!

    Was looking forward to taking it a good run too, see if there is any noticeable difference ????
     
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  18. Jim2

    Jim2 Senior Member

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    Never ending, no beginning, like a wheel within a wheel.....:cool::cool::cool:
     
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  19. steveq

    steveq Senior Member

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    Hi,

    Well done on getting the ATF change done.

    On the pump there are 2 small pipes that go from the pump to the gearbox.
    These are a push fit to the pump and can come out when the pump is removed.
    They can fall into pan you used to catch the old ATF -- don't ask me how I know !!??

    Make sure that both little pipes are in the pump when you refit it and not sitting in the bottom of the old ATF. The are only about an inch long so are very easy to miss or leave in the bottom of the old fluid.
    Here is a picture of the underside of the pump with the little pipes. Someone has stuffed bits of a paper towel or the like into the pipes in the picture so you will see what I am talking about.
    upload_2020-5-12_9-21-45.png

    There will be a leak if either are missing.

    I doubt if more than one litre will come out if you remove the pump and refit.
     
    Last edited: May 12, 2020
  20. OP
    mickfit6

    mickfit6 Active Member

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    Jez Steve, that's helped alot mate. The pic is great.....as you know its not rocket science to remove and refit, actually thought i was very careful too (smart arse, that'll feckn teach me) but as you say, they're so easy to miss.....To see that small weep while the engine was running, was feckn raging !!!
    I've ordered the o rings as suggested by Alex...so no matter what, ill replace them anyway and also another ltr of oil, just incase.
    But ill follow up once I get sorted !!!!!

    Big thx to everyone who replied, thx again !!
     
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